ThmDex – An index of mathematical definitions, results, and conjectures.
D1519: Constant map
D2771: Graph-generated digraph
D5901: Logistic random real number
D1812: Right-closed interval
D5900: Standard basic real inverse logistic function
D88: Set closure
D5706: Real entropy function
D23: Abelian group
D4476: Lipschitz constant
D525: Left inverse map
D1109: Measurable set
D76: Set intersection
D1743: Lebesgue measure
D589: Successor set
D357: Left-unique binary relation
D2402: Real number square root
D225: Set of natural numbers
D537: Left identity element
D1676: Null measurable set
D3416: Complex martingale
D3953: Schwartz function
D1510: Closed real unit interval
D1580: Fermat number
D3865: Measurable space isomorphism
D1837: Irreflexive binary relation
D3189: Complex random Lebesgue quotient set
D3552: Conditional basic boolean logic gate
D204: Probability distribution measure
D3731: Standard Cantor set
D6182: Complex square matrix standard minor
D6263: Integer base-2 representation
D1241: Standard zero group
D2900: Quantile function
D2100: Positive definite complex matrix
D2758: Cylinder set
D1707: Ordered set
D5969: Set of euclidean boolean numbers
D84: Sigma-algebra
D219: Empty map
D6269: N-bit integer
D4925: Euclidean real arithmetic mean
D37: Orthogonal vector pair
D47: Lipschitz map
D98: Closed set
D218: Boolean function
D466: Surjective map
D5951: Euclidean P-length function
D18: Map
D3591: Subtopology
D6031: Canonical real identity function
D61: Semimetric
D527: Composite map
D1651: Monoid homomorphism
D3754: Standard gaussian function
D427: Isotone map
D3551: NAND boolean logic gate
D4000: Standard exponential random positive real number
D5466: Minimal Lipschitz constant
D551: Fixed point
D995: Integer
D5192: Real matrix square root
D1810: Open interval
D2864: Real gaussian density function
D484: Set of sigma-algebras
D3555: OR boolean logic gate
D24: Ring
D5752: Softmax function
D5698: Real martingale
D2751: Hyperdigraph
D4105: Standard counting measure
D3358: I.I.D. random collection
D4393: Event Shannon nat information
D1405: Vector space isomorphism
D903: String
D2156: Adapted random collection
D5208: Symmetric random real number
D71: Symmetric set difference
D3763: Jordan outer measure
D3766: Jordan measure
D5931: Boolean parity function
D1880: Cofinite set
D1106: Topological space
D4154: Conditionally independent collection of sigma-algebras
D5723: Simple random variable
D5365: Standard digit sequence
D99: Separable topological space
D2950: Strict superlevel set
D5143: Set partition
D1881: Cocountable set
D6242: Euclidean complex Gram-Schmidt projection
D5150: Complement set partition
D1290: Basic function negative part
D138: Standard mollifier
D5121: Subaffine map
D1821: Map minimum
D3097: Set of fixed points
D117: Complex Lebesgue quotient set
D3997: Even euclidean real function
D4448: Closed set cover
D1885: Upward enclosed set
D5395: Verum basic boolean logic gate
D5215: Random rational number
D5860: Complex matrix eigenmatrix
D637: Natural number addition operation
D3483: Atomic measurable set
D568: Map composition operation
D5637: Standard basic natural number counting measure
D5103: Unsigned basic expectation
D2888: Radon-Nikodym derivative
D2410: Standard real exponentiation function
D708: Superlinear map
D4938: Positive definite real matrix
D5808: Real sequence asymptotic lower bound growth class
D1210: Complex modulus function
D5477: Real exponential mean
D2841: Stationary measurable set
D5521: Riemann sum
D3202: Basic natural number set density
D1225: Counting measure
D2948: Sublevel set
D507: Complex conjugate
D5985: Euclidean real Gram-Schmidt projection
D4491: Ergodic probability measure
D6246: Set of triadic rational numbers
D5511: Standard single boolean trial probability space
D216: Inverse map
D1492: Map graph
D3915: Exchangeable random collection
D1383: Euclidean length function
D5783: ReLU function
D1278: Right-closed real interval
D431: Strictly antitone map
D955: Proper superset
D4612: Folded gaussian random unsigned real number
D1400: Set distance
D994: Rational number
D5941: Real square matrix cofactor
D4665: Standard real repeating tangent function
D5858: Diagonal complex matrix
D2873: Binomial probability mass function
D5870: Invertible complex matrix
D3983: Complex random Lebesgue inner product
D207: Bernoulli random boolean number
D4423: Relation class
D68: Set of maps
D606: Real addition operation
D4990: Riemann sphere projection
D609: Rational multiplication operation
D3922: N-wise disjoint set collection
D2153: Measurable product space
D3121: Measure-convergent sequence
D4492: Ergodic probability-preserving system
D4595: Set of Fibonacci numbers
D3658: Standard real Wiener process
D1613: P-subgroup
D412: Absolute value function
D4468: Empty metric space
D4316: Set of singletons
D543: Open real interval
D2099: Positive semidefinite complex matrix
D6033: Standard natural hyperbolic tangent function
D2018: Subspace topology
D467: Injective map
D288: Transitive binary relation
D5854: Digraph-generated graph
D5781: Pairwise disjoint set collection
D1672: Collatz function
D785: Kolmogorov topological space
D2223: Set of surjections
D5508: Conditionally independent collection of event collections
D2854: Poisson random natural number
D1563: Group centre
D3344: Set of subsigma-algebras
D1838: Borel measurable space
D536: Right inverse element
D113: Riemann zeta function
D184: Constancy relation
D2870: Standard euclidean real gaussian density function
D136: Topologically dense set
D3333: Hölder map
D5862: Complex matrix eigenvalue
D287: Reflexive binary relation
D1680: Zero measure
D221: Alphabet
D2696: Digraph
D4978: Basic rational closed unit interval
D5292: Standard strong white noise random real collection
D1731: Submeasure
D559: Semiring
D5871: Invertible real matrix
D526: Right inverse map
D91: Product topology
D5929: RGB color
D3369: Subset structure
D5116: Cogeometric random natural number
D2851: Standard measurable space of natural numbers
D74: Set cover
D5911: Sensitivity
D2842: Set of stationary measurable sets
D5124: Conic map
D4782: Evaluation map
D359: Left-total binary relation
D5236: Empirical probability distribution measure
D4531: Superdigraph
D52: Closed map
D4364: Real function
D553: Set of lower bounds
D4691: Standard real harmonic series
D604: Integer addition operation
D265: Monoid
D41: Indicator function
D4075: Hyperpower set
D209: Probability density function
D4764: Set of null sets
D4489: Stationary event
D4248: Almost everywhere constant map
D5640: Set of euclidean complex numbers
D2747: Acyclic graph
D3550: NOT boolean logic gate
D1860: Stieltjes sigma-algebra
D6240: Euclidean complex dot product
D165: Standard complex cosine function
D5705: Natural real entropy function
D181: Canonical set epimorphism
D276: Module
D666: Transitive set
D2011: Euclidean real covariance
D5569: Almost stationary measurable map
D2718: Euclidean real gaussian density function
D3998: Odd euclidean real function
D5080: Standard Wiener process
D3660: Countable map
D6034: Standard real cotangent function
D429: Monotone map
D2325: Random euclidean real number characteristic function
D4664: Standard real tangent function
D3835: Duoton set
D5738: Strictly subconvex real function
D169: Napier's constant
D3831: Independent collection of event collections
D4136: Real cartesian product
D5096: Beta function
D5042: Trioton set
D948: Group homomorphism
D2144: Random real number standard deviation
D5944: Real matrix vectorization
D2713: Independent random collection
D4594: Fibonacci natural number sequence
D1729: Pushforward sigma-algebra
D1275: Set of basic numbers
D249: F-sigma set
D743: Euclidean real dot product operation
D3047: Map strict subgraph
D1568: P-group
D6003: Null event
D6241: Euclidean real dot product
D3799: Set of open cylinder sets
D4428: Canonical identity map
D50: Isometry
D5946: Real matrix trace
D5982: Orthonormal real matrix
D1704: Complete measure
D1697: Sigma-bounded measure
D5949: Lower triangular complex matrix
D5634: Standard real gaussian function
D669: Minimal element
D1583: Weierstrass function
D4949: Natural number function
D3791: Standard beta function
D5394: Falsum basic boolean logic gate
D2015: Random real number moment
D5630: Set of euclidean real numbers
D2906: Set of N-subsets
D432: Strictly monotone map
D5638: Top subset structure of natural numbers
D5674: Complex matrix antisymmetric part
D1886: Downward enclosed set
D848: Chain
D2737: Subgraph
D4551: Graph complement
D5891: Standard unsigned uniform real density function
D6122: Standard uniform discrete probability space
D4864: Chi random unsigned real number
D3844: Index of dispersion
D1897: Lower enclosure
D1916: Bottom sigma-algebra
D2166: Natural number factorial
D4526: Arrow set
D5319: Idempotent binary operation
D4474: Canonical empty map
D673: Von Neumann ordinal sequence
D4527: Node set
D326: Cartesian product
D954: Superset
D195: Discrete sigma-algebra
D3966: Constancy-preserving map
D1861: Stieltjes measurable space
D2740: Spanning subgraph
D3838: Gamma random positive real number
D4197: Central binomial coefficient
D529: Map inverse image
D39: Identity element
D5570: Stationary measurable map
D80: Power set
D1301: Generated subgroup
D1162: Bottom topological space
D2154: Product sigma-algebra
D1104: Binary relation structure
D2949: Superlevel set
D4617: Digamma function
D2749: Tree graph
D4312: Complex polynomial function
D690: Linear map
D5676: Diagonalizable complex matrix
D1587: Euclidean real function slope
D5289: Strong white noise random real collection
D1934: Standard natural hyperbolic sine function
D638: Natural number multiplication operation
D3880: Unsigned basic integral measure
D5809: Real sequence strict asymptotic upper bound growth class
D5700: Euclidean real line segment
D5695: Full rank complex matrix
D1681: Disjoint set collection
D4865: Fisher random unsigned real number
D5614: Differentiable real function
D5967: Set of euclidean rational numbers
D519: Set interior
D1931: Standard real sine function
D55: Continuous map
D672: Ordinal number
D5402: Boolean logic gate
D1703: Point measure
D978: Right-invertible map
D319: Borel sigma-algebra
D2727: Infinite graph
D2141: Random real number skewness
D6223: Normal complex matrix
D398: Matrix transpose
D2839: Probability-preserving system
D1819: Order isomorphism
D3570: Dyadic rational number
D5500: Almost sure event
D4490: Set of stationary events
D2719: Standard real gaussian density function
D2660: Set endomorphism
D734: Complex conjugation operation
D3111: Set of topologically dense sets
D4930: Real harmonic series
D211: Standard gaussian random real number
D2940: Measure-preserving endomorphism
D5942: Real cofactor matrix
D714: Dedekind cut
D4057: Standard real brownian bridge process
D5943: Real adjugate matrix
D4518: Set of numbers
D4534: Infinite digraph
D2012: Conditional probability
D109: Signum function
D2183: Set of bytes
D6205: Conjugate symmetric complex matrix
D5073: Euler-Mascheroni constant
D2901: Multiset
D286: Partial ordering relation
D2454: Real arithmetic mean
D5293: Standard weak white noise random real collection
D3801: Set of measurable cylinder sets
D1579: Distinct prime factor counting function
D4530: Set of subdigraphs
D786: Standard natural complex exponential function
D1107: Metric space
D5691: Complex matrix eigenvector
D97: Open set
D327: Canonical set projection
D93: Neighbourhood
D729: Conjugate symmetric complex function
D5263: Standard symmetric random real number
D5348: Set of binary relations
D1732: Pushforward measure
D5018: Affine map
D4947: Rational function
D70: Set difference
D4898: Complex domain
D174: Vector space dimension
D2910: Set of proper set partitions
D4424: Binary endorelation
D781: Complex Lebesgue inner product
D5306: Complex matrix conjugate transpose
D6186: Standard permutation
D4475: Trivial metric space
D442: Empty topology
D193: Inductive set
D4806: Arithmetic function
D4467: Sigma-algebra restriction
D761: Identity matrix
D1296: Weak white noise random real collection
D1694: Lattice order relation
D5585: Set of P-integrable random basic real numbers
D4937: Positive semidefinite real matrix
D371: Imaginary number
D101: Proper subset
D4139: Catalan sequence
D2840: Ergodic measure-preserving system
D364: Euclidean distance function
D191: Binary cartesian set product
D5930: RGB image
D78: Subset
D3517: Language
D5866: Left-invertible complex matrix
D248: G-delta set
D778: Graph
D103: Finite matrix
D202: Random variable
D17: Finite set
D300: Supremum element
D4549: Graph union
D608: Integer multiplication operation
D2282: Set of probability measures
D2731: Complete graph
D4201: Set of rademacher integers
D1394: Normal subgroup
D3793: Exponential probability distribution function
D6074: Apéry's constant
D56: Homeomorphism
D2086: Orthonormal complex matrix
D5956: Feed-forward neural network
D5465: Contraction
D5179: Set of euclidean natural numbers
D336: Convergent sequence
D4666: Standard real cosecant function
D48: Bilipschitz map
D6231: Complex matrix square root
D85: Unsigned basic measure
D4: Binary relation
D179: Equivalence class
D5754: Standard real log-sum-exp function
D4155: Conditionally independent random collection
D16: Countable set
D5282: Standard Cauchy random real number
D5274: Overdispersed random basic real number
D77: Set union
D6050: Real square function
D263: Groupoid
D4529: Subdigraph
D316: Set of P-integrable complex Borel functions
D1932: Standard natural real exponential function
D4636: Set of chains
D6185: Complex adjugate matrix
D3306: Real harmonic mean
D2455: Real geometric mean
D353: Set automorphism
D4571: Real matrix
D5033: Monic complex polynomial function
D358: Right-unique binary relation
D5825: Complex matrix characteristic polynomial
D6216: Symmetric complex matrix
D1523: Isomorphic sets
D3889: Tail sigma-algebra
D157: Disjoint union
D2738: Supergraph
D217: Set of boolean numbers
D5976: Real matrix complex eigenvalue
D5928: Set of RGB colors
D5071: Algebraic subset structure
D3553: XNOR boolean logic gate
D2137: Basic real golden ratio
D86: Topology
D4469: Empty measurable space
D470: Subsigma-algebra
D4948: Integer function
D4696: Conjugate-even complex function
D1730: Pullback sigma-algebra
D4076: Hypersubset
D3777: Standard Cantor number
D154: Pushforward topology
D6184: Complex cofactor matrix
D2150: Intersection algebra
D5959: Neuron layer function
D4550: Graph intersection
D535: Left inverse element
D4717: Entire function
D676: Map support
D247: Topologically self-dense set
D2640: Clopen set
D1811: Left-closed interval
D538: Right identity element
D1760: Riemann integrable real function
D5680: Random real number empirical probability distribution measure
D441: Open set cover
D5275: Underdispered random basic real number
D3949: Complex number polar representation
D4624: Standard unsigned uniform random real number
D5948: Upper triangular complex matrix
D5639: Complex cartesian product
D198: Probability measure
D317: Lebesgue length function
D289: Antisymmetric binary relation
D5641: Standard counting measure space of basic natural numbers
D5287: Standard rademacher random integer
D2054: Diagonal matrix
D1112: Empty topological space
D5406: Positive integer function
D3757: Elementary euclidean real set
D670: Maximal element
D2827: Measure-preserving system
D2745: Set of subgraphs
D5853: Set of connected graph components
D4862: Erlang random positive real number
D3774: Complete probability measure
D5673: Zero definite complex matrix
D2919: Permutation
D520: Set exterior
D4545: Triangle graph
D5211: Standard real poisson process
D1079: Canonical surjective submap
D5940: Real square matrix standard minor
D3200: Lower basic natural number set density
D214: Exponential random positive real number
D4689: Factorial sequence
D2577: Set of octonions
D201: Measurable map
D399: Symmetric matrix
D4391: Event Shannon information
D2148: Pairwise independent event collection
D2115: Nonempty set
D370: Set of irrational numbers
D4695: Conjugate-odd complex function
D282: Set of real numbers
D4548: Graph homomorphism
D294: Symmetric binary relation
D5649: Complex oriented curve integral
D301: Infimum element
D3571: Set of dyadic rational numbers
D471: Independent collection of sigma-algebras
D3044: Map supergraph
D178: Equivalence relation
D2898: Random real number percentile
D258: Gamma function
D3180: Basic function
D462: Open neighbourhood
D857: Empty binary relation
D1858: Stieltjes outer measure
D3649: Random unsigned basic measure
D611: Complex multiplication operation
D5102: Basic expectation
D3046: Map subgraph
D3120: Probability-preserving endomorphism
D6273: Uniformly random N-bit integer
D610: Real multiplication operation
D2801: Conull set
D5574: Weakly mixing probability-preserving system
D950: Ring homomorphism
D4613: Standard folded gaussian random unsigned real number
D5594: Lebesgue distance function
D4536: Infinite ring
D2142: Random real number kurtosis
D100: Topological subspace
D212: Chi-squared random unsigned real number
D5043: Real function arithmetic mean
D5464: Hyperpower set sequence
D3367: Subset algebra
D5097: Dirichlet random euclidean real number
D1411: Analytic complex function
D3999: Standard Bernoulli random boolean number
D5191: Complex matrix kronecker product
D57: Open map
D5285: Standard chi-squared random unsigned real number
D22: Group
D2149: Lambda algebra
D607: Complex addition operation
D5779: Iterative Fibonacci algorithm
D83: Proper set partition
D3804: Set of subnull sets
D3711: Complex power series
D180: Quotient set
D208: Binomial random natural number
D6192: Complex matrix eigenvalue sequence
D2: Absolutely continuous real function
D1749: Complex integral
D5918: Real number principal square root
D4430: Constancy class
D3765: Set of Jordan measurable sets
D246: Topologically nowhere dense set
D1108: Measurable space
D382: Heaviside function
D668: Maximum element
D5675: Complex matrix symmetric part
D5629: Real neuron function
D5468: Triadic rational number
D1678: Complete measure space
D1042: Set of digits
D296: Set upper bound
D5276: Equidispersed random basic real number
D5094: Positive integer
D2635: Warsaw sine function
D5974: Complex matrix spectrum
D5717: Complex matrix determinant
D318: Generated sigma-algebra
D3495: Finite state machine
D605: Rational addition operation
D1734: Outer measure
D3657: Real Wiener process
D4509: Graph tensor product
D121: Complex Lebesgue convolution
D1748: Signed basic integral
D65: Cauchy sequence
D795: Standard Hilbert cube
D210: Gaussian random real number
D1048: N-ary relation
D3556: NOR boolean logic gate
D3059: Ergodic measure
D3798: Open cylinder set
D440: Identity map
D164: Standard complex sine function
D4614: Log-gaussian random basic real number
D79: Set complement
D6217: Symmetric real matrix
D2951: Strict sublevel set
D4583: Maximal binary relation
D1082: Finite group
D866: Standard real logarithm function
D5428: Natural number base-2 representation
D4115: Gram-Schmidt projection
D1402: Closed ball
D1700: Discrete measurable space
D3201: Upper basic natural number set density
D4517: Set of euclidean basic numbers
D3800: Measurable cylinder set
D430: Strictly isotone map
D4109: Predictable random sequence
D2899: Random real number median
D3876: Set of isolated points
D1673: Sample space
D3161: Random real number
D5724: Simple random variable mutual information
D1917: Bottom measurable space
D686: Class of ordinal numbers
D3312: Real power mean
D3037: Set of euclidean real intervals
D5005: Complex function primitive
D127: Open ball
D386: Set of continuous maps
D2504: Weak contraction
D6266: 16-bit integer
D827: Set of quaternions
D6195: Complex lexicographic ordering relation
D2189: Semigroup homomorphism
D977: Left-invertible map
D3554: AND boolean logic gate
D6181: Complex matrix standard submatrix
D558: Ringoid
D5286: Rademacher random integer
D2140: Random real number variance
D6268: 64-bit integer
D3650: Random probability measure
D3802: Subnull set
D6224: Normal real matrix
D4715: Analytic real function
D5726: Simple random variable joint entropy
D3439: Event odds
D747: Idempotent map
D5277: Index of variation
D5120: Superaffine map
D4812: Topological space density
D1277: Left-closed real interval
D264: Semigroup
D1224: Set diameter
D5718: Real matrix determinant
D5606: Subconvex real function
D976: Invertible map
D1159: Probability space
D1727: Boolean algebra
D6267: 32-bit integer
D4392: Event Shannon bit information
D5254: Stationary random sequence
D5134: Unsigned basic binary operation
D2947: Level set
D379: Maximum operation
D6226: Complex matrix singular value
D5524: Standard Poisson random natural number
D865: Standard natural real logarithm function
D4807: Möbius function
D135: Singleton set
D2221: Set of bijections
D3567: Measure absolute continuity relation
D989: Map kernel
D5376: Set of finite unsigned basic measures
D6037: Euclidean real component sum operation
D40: Inverse element
D963: Empty sigma-algebra
D5844: Complex matrix vectorization
D1822: Map maximum
D5019: Convex map
D528: Map image
D297: Set lower bound
D4533: Finite digraph
D58: Metric
D1933: Standard natural hyperbolic cosine function
D1581: Mersenne prime integer
D6265: 8-bit integer
D5968: Set of euclidean integers
D2790: Mediator digraph
D5869: Left-invertible real matrix
D2013: Random real number central moment
D1289: Basic function positive part
D5977: Real matrix eigenvector
D3745: Renewal process
D2167: Binomial coefficient
D5708: Standard basic real logistic function
D330: Proper set partition relation
D244: Baire topological space
D5648: Continuously differentiable complex path integral
D1896: Upper enclosure
D5632: Complex Lebesgue convolution approximate identity
D723: Symmetric map
D1699: Basic number
D2634: Warsaw sine curve
D1083: Finite ring
D465: Hausdorff topological space
D5220: Convex conjugate function
D1927: Standard real cosine function
D6: Natural number factorial function
D5945: Complex matrix trace
D428: Antitone map
D724: Set of Cauchy sequences
D5912: Specificity
D2795: Conditionally independent event collection
D5520: Closed real interval tagged partition
D368: Set of rational numbers
D2872: Bernoulli probability mass function
D1103: Partially ordered set
D1944: Strict ordinal number ordering relation
D360: Right-total binary relation
D2865: Exponential density function
D1382: Complex euclidean length function
D1747: Unsigned basic integral
D6102: Dirichlet function
D49: Proper contraction
D707: Sublinear map
D5622: Hessian real matrix function
D2424: Set of real intervals
D667: Minimum element
D5575: Probability-preserving random euclidean real sequence
D4473: Trivial metric
D1720: Independent event collection
D457: Isolated point
D1401: Sphere
D447: Open set partition
D2197: Set of topologies
D1158: Measure space
D5807: Real sequence asymptotic upper bound growth class
D2222: Set of injections
D2299: Polish topological space
D3083: Set of P-integrable random complex numbers
D4493: Canonical singleton map
D5359: Singleton map
D6220: Complex matrix diagonal factorization
D6183: Complex square matrix cofactor
D372: Set of complex numbers
D362: Inverse binary relation
D2786: Collider digraph
D3557: XOR boolean logic gate
D3954: Radial function
D554: Binary operation
D4867: Beta random positive real number
D3003: Closed set partition
D5324: Random real number stochastic ordering relation
D2732: Graph isomorphism
D6061: Standard unit semicircle function
D5573: Strongly mixing probability-preserving system
D2014: Random real number absolute moment
D1240: Trivial group
D3383: Constant function
D1670: Primorial function
D3045: Map strict supergraph
D3566: Set of unsigned basic measures
D1509: Open real unit interval
D4210: Indicator function operator
D5950: Complex euclidean P-length function
D20: Enclosed binary operation
D5867: Right-invertible complex matrix
D5917: Random real number standard error
D92: Limit point
D468: Bijective map
D5207: Real poisson process
D2887: Absolutely continuous measure
D5480: Even real function
D2788: Confounder digraph
D679: Groupoid homomorphism
D5467: Set of Lipschitz constants
D5156: Euclidean real variance
D1862: Stieltjes measure
D1945: Closure point
D1809: Closed interval
D1110: Discrete topological space
D4587: Set of digraphs
D552: Set of upper bounds
D5868: Right-invertible real matrix
D3730: Standard cantor sequence
D3739: Laplace transform
D2913: Bell coefficient
D3775: Complete probability space
D293: Asymmetric binary relation
D544: Closed real interval
D1578: Prime factor counting function
D5066: Canonical empty binary relation
D1716: Event
D75: Set subcover
D2726: Finite graph
D197: Finite measure
D43: Inclusion map
D5939: Real matrix standard submatrix
D702: Involution
D34: Inner product
D380: Minimum operation
D3357: Identically distributed random collection
D367: Set of integers
D4001: Geometric random positive integer
D1416: Differentiable euclidean real function
D1163: Bottom topology