LaTeX Code
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LaTeX Result
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Unicode (Hex)
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HTML+CSS Code
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HTML+CSS Result
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Mathematical usage
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<math>\mathbb{A}</math>
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U+1D538
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{{math|{{mathbb|A}}, {{Unicode|𝔸}}|&&}}
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Represents affine space or the ring of adeles. Sometimes represents the algebraic numbers, the algebraic closure of β (or Q), notated β (although Q is often used instead). It may also represent the algebraic integers, an important subring of the algebraic numbers.
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{{math|{\rm a}{{sp|-7|tex}}{\rm a}|$$}}
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U+1D552
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{{math|{{mathbb|a}}, {{Unicode|𝕒}}|&&}}
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<math>\mathbb{B}</math>
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U+1D539
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{{math|{{mathbb|B}}, {{Unicode|𝔹}}|&&}}
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Sometimes represents a ball, a boolean domain, or the Brauer group of a field.
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{{math|{\rm b}{{sp|-7|tex}}{\rm b}|$$}}
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U+1D553
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{{math|{{mathbb|b}}, {{Unicode|𝕓}}|&&}}
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<math>\mathbb{C}</math>
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U+2102
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{{math|{{mathbb|C}}, {{Unicode|ℂ}}|&&}}
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Represents the complex numbers.
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{{math|{\rm c}{{sp|-5|tex}}{\rm c}|$$}}
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U+1D554
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{{math|{{mathbb|c}}, {{Unicode|𝕔}}|&&}}
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<math>\mathbb{D}</math>
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U+1D53B
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{{math|{{mathbb|D}}, {{Unicode|𝔻}}|&&}}
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Represents the unit (open) disk in the complex plane (for example as a model of the Hyperbolic plane), or the decimal fractions (see number).
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{{math|{\rm d}{{sp|-7|tex}}{\rm d}|$$}}
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U+1D555
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{{math|{{mathbb|d}}, {{Unicode|𝕕}}|&&}}
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{{math|D {{sp|-9|tex}}{{sp|-3|tex}} D|$$}}
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U+2145
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{{math|''{{mathbb|D}}'', {{Unicode|ⅅ}}|&&}}
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{{math|d{{sp|-7|tex}}d|$$}}
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U+2146
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{{math|''{{mathbb|d}}'', {{Unicode|ⅆ}}|&&}}
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May represent the differential symbol.
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<math>\mathbb{E}</math>
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U+1D53C
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{{math|{{mathbb|E}}, {{Unicode|𝔼}}|&&}}
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Represents the expected value of a random variable, or Euclidean space, or a field in a tower of fields.
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{{math|{\rm e}{{sp|-5|tex}}{\rm e}|$$}}
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U+1D556
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{{math|{{mathbb|e}}, {{Unicode|𝕖}}|&&}}
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{{math|e{{sp|-6|tex}}e|$$}}
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U+2147
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{{math|''{{mathbb|e}}'', {{Unicode|ⅇ}}|&&}}
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Sometimes used for the Euler's number e.
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<math>\mathbb{F}</math>
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U+1D53D
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{{math|{{mathbb|F}}, {{Unicode|𝔽}}|&&}}
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Represents a field. Often used for finite fields, with a subscript to indicate the order. Also represents a Hirzebruch surface or a free group, with a subset to indicate the number of generators (or generating set, if infinite).
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{{math|{\rm f}{{sp|-4|tex}}{\rm f}|$$}}
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U+1D557
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{{math|{{mathbb|f}}, {{Unicode|𝕗}}|&&}}
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<math>\mathbb{G}</math>
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U+1D53E
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{{math|{{mathbb|G}}, {{Unicode|𝔾}}|&&}}
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Represents a Grassmannian or a group, especially an algebraic group.
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{{math|{\rm g}{{sp|-7|tex}}{\rm g}|$$}}
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U+1D558
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{{math|{{mathbb|g}}, {{Unicode|𝕘}}|&&}}
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<math>\mathbb{H}</math>
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U+210D
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{{math|{{mathbb|H}}, {{Unicode|ℍ}}|&&}}
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Represents the quaternions (the H stands for Hamilton), or the upper half-plane, or hyperbolic space, or hyperhomology of a complex.
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{{math|{\rm h}{{sp|-7|tex}}{\rm h}|$$}}
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U+1D559
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{{math|{{mathbb|h}}, {{Unicode|𝕙}}|&&}}
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<math>\mathbb{I}</math>
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U+1D540
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{{math|{{mathbb|I}}, {{Unicode|𝕀}}|&&}}
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Occasionally used to denote the identity mapping on an algebraic structure, or the set of imaginary numbers (i.e., the set of all real multiples of the imaginary unit).
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{{math|{\rm i}{{sp|-2|tex}}{\rm i}|$$}}
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U+1D55A
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{{math|{{mathbb|i}}, {{Unicode|𝕚}}|&&}}
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{{math|i{{sp|-3|tex}}i|$$}}
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U+2148
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{{math|''{{mathbb|i}}'', {{Unicode|ⅈ}}|&&}}
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Occasionally used for the imaginary unit.
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<math>\mathbb{J}</math>
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U+1D541
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{{math|{{mathbb|J}}, {{Unicode|𝕁}}|&&}}
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Sometimes represents the irrational numbers, R\Q (β\β).
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{{math|{\rm j}{{sp|-3|tex}}{\rm j}|$$}}
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U+1D55B
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{{math|{{mathbb|j}}, {{Unicode|𝕛}}|&&}}
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{{math|j{{sp|-5|tex}}j|$$}}
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U+2149
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{{math|''{{mathbb|j}}'', {{Unicode|ⅉ}}|&&}}
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<math>\mathbb{K}</math>
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U+1D542
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{{math|{{mathbb|K}}, {{Unicode|𝕂}}|&&}}
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Represents a field, typically a scalar field. This is derived from the German word KΓΆrper, which means field (literally, "body"; cf. the French term corps). May also be used to denote a compact space.
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{{math|{\rm k}{{sp|-7|tex}}{\rm k}|$$}}
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U+1D55C
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{{math|{{mathbb|k}}, {{Unicode|𝕜}}|&&}}
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<math>\mathbb{L}</math>
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U+1D543
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{{math|{{mathbb|L}}, {{Unicode|𝕃}}|&&}}
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Represents the Lefschetz motive. (See motives.)
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{{math|{\rm l}{{sp|-2|tex}}{\rm l}|$$}}
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U+1D55D
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{{math|{{mathbb|l}}, {{Unicode|𝕝}}|&&}}
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<math>\mathbb{M}</math>
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U+1D544
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{{math|{{mathbb|M}}, {{Unicode|𝕄}}|&&}}
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Represents the monster group.
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{{math|{\rm m}{{sp|-9|tex}}{{sp|-4|tex}}{\rm m}|$$}}
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U+1D55E
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{{math|{{mathbb|m}}, {{Unicode|𝕞}}|&&}}
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<math>\mathbb{N}</math>
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U+2115
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{{math|{{mathbb|N}}, {{Unicode|ℕ}}|&&}}
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Represents the natural numbers. (May or may not include zero.)
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{{math|{\rm n}{{sp|-8|tex}}{\rm n}|$$}}
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U+1D55F
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{{math|{{mathbb|n}}, {{Unicode|𝕟}}|&&}}
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<math>\mathbb{O}</math>
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U+1D546
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{{math|{{mathbb|O}}, {{Unicode|𝕆}}|&&}}
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Represents the octonions.
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{{math|{\rm o}{{sp|-6|tex}}{\rm o}|$$}}
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U+1D560
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{{math|{{mathbb|o}}, {{Unicode|𝕠}}|&&}}
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<math>\mathbb{P}</math>
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U+2119
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{{math|{{mathbb|P}}, {{Unicode|ℙ}}|&&}}
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Represents projective space, the probability of an event, the prime numbers, a power set, the positive reals, the irrational numbers, or a forcing partially ordered set (poset).
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{{math|{\rm p}{{sp|-7|tex}}{\rm p}|$$}}
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U+1D561
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{{math|{{mathbb|p}}, {{Unicode|𝕡}}|&&}}
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<math>\mathbb{Q}</math>
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U+211A
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{{math|{{mathbb|Q}}, {{Unicode|ℚ}}|&&}}
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Represents the rational numbers. (The Q stands for quotient.)
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{{math|{\rm q}{{sp|-7|tex}}{\rm q}|$$}}
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U+1D562
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{{math|{{mathbb|q}}, {{Unicode|𝕢}}|&&}}
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<math>\mathbb{R}</math>
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U+211D
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{{math|{{mathbb|R}}, {{Unicode|ℝ}}|&&}}
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Represents the real numbers.
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{{math|{\rm r}{{sp|-4|tex}}{\rm r}|$$}}
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U+1D563
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{{math|{{mathbb|r}}, {{Unicode|𝕣}}|&&}}
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<math>\mathbb{S}</math>
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U+1D54A
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{{math|{{mathbb|S}}, {{Unicode|𝕊}}|&&}}
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Represents the sedenions, or a sphere.
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{{math|{\rm s}{{sp|-5|tex}}{\rm s}|$$}}
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U+1D564
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{{math|{{mathbb|s}}, {{Unicode|𝕤}}|&&}}
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<math>\mathbb{T}</math>
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U+1D54B
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{{math|{{mathbb|T}}, {{Unicode|𝕋}}|&&}}
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Represents a torus, or the circle group or a Hecke algebra (Hecke denoted his operators as Tn or ππ), or the Tropical semi-ring.
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{{math|{\rm t}{{sp|-4|tex}}{\rm t}|$$}}
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U+1D565
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{{math|{{mathbb|t}}, {{Unicode|𝕥}}|&&}}
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<math>\mathbb{U}</math>
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U+1D54C
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{{math|{{mathbb|U}}, {{Unicode|𝕌}}|&&}}
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{{math|{\rm u}{{sp|-8|tex}}{\rm u}|$$}}
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U+1D566
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{{math|{{mathbb|u}}, {{Unicode|𝕦}}|&&}}
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<math>\mathbb{V}</math>
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U+1D54D
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{{math|{{mathbb|V}}, {{Unicode|𝕍}}|&&}}
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Represents a vector space.
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{{math|{\rm v}{{sp|-7|tex}}{\rm v}|$$}}
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U+1D567
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{{math|{{mathbb|v}}, {{Unicode|𝕧}}|&&}}
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<math>\mathbb{W}</math>
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U+1D54E
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{{math|{{mathbb|W}}, {{Unicode|𝕎}}|&&}}
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Represents the whole numbers (here in the sense of non-negative integers), which also are represented by β0.
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{{math|{\rm w}{{sp|-9|tex}}{{sp|-2|tex}}{\rm w}|$$}}
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U+1D568
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{{math|{{mathbb|w}}, {{Unicode|𝕨}}|&&}}
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<math>\mathbb{X}</math>
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U+1D54F
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{{math|{{mathbb|X}}, {{Unicode|𝕏}}|&&}}
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Occasionally used to denote an arbitrary metric space.
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{{math|{\rm x}{{sp|-7|tex}}{\rm x}|$$}}
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U+1D569
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{{math|{{mathbb|x}}, {{Unicode|𝕩}}|&&}}
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<math>\mathbb{Y}</math>
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U+1D550
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{{math|{{mathbb|Y}}, {{Unicode|𝕐}}|&&}}
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{{math|{\rm y}{{sp|-7|tex}}{\rm y}|$$}}
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U+1D56A
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{{math|{{mathbb|y}}, {{Unicode|𝕪}}|&&}}
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<math>\mathbb{Z}</math>
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U+2124
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{{math|{{mathbb|Z}}, {{Unicode|ℤ}}|&&}}
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Represents the integers. (The Z is for Zahlen, which is German for "numbers".)
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{{math|{\rm z}{{sp|-5|tex}}{\rm z}|$$}}
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U+1D56B
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{{math|{{mathbb|z}}, {{Unicode|𝕫}}|&&}}
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{{math|\Gamma{{sp|-9|tex}}\Gamma|$$}}
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U+213E
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{{math|{{Unicode|βΎ}}, {{Unicode|ℾ}}|&&}}
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{{math|\gamma{{sp|-9|tex}}\gamma|$$}}
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U+213D
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{{math|{{Unicode|β½}}, {{Unicode|ℽ}}|&&}}
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{{math|\prod{{sp|-18|tex}}{{sp|-7|tex}}\prod|$$}}
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U+213F
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{{math|{{Unicode|βΏ}}, {{Unicode|ℿ}}|&&}}
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{{math|\pi{{sp|-9|tex}}\pi|$$}}
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U+213C
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{{math|{{Unicode|βΌ}}, {{Unicode|ℼ}}|&&}}
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{{math|\sum{{sp|-18|tex}}{{sp|-9|tex}}{{sp|-1|tex}}\sum|$$}}
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U+2140
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{{math|{{Unicode|β
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{{math|0{{sp|-6|tex}}0|$$}}
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U+1D7D8
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{{math|{{mathbb|0}}, {{Unicode|𝟘}}|&&}}
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{{math|1{{sp|-6|tex}}1|$$}}
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U+1D7D9
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{{math|{{mathbb|1}}, {{Unicode|𝟙}}|&&}}
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Often represents, in set theory, the top element of a forcing partially ordered set (poset), or occasionally for the identity matrix in a matrix ring.
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{{math|2{{sp|-6|tex}}2|$$}}
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U+1D7DA
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{{math|{{mathbb|2}}, {{Unicode|𝟚}}|&&}}
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{{math|3{{sp|-6|tex}}3|$$}}
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U+1D7DB
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{{math|{{mathbb|3}}, {{Unicode|𝟛}}|&&}}
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{{math|4{{sp|-6|tex}}4|$$}}
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U+1D7DC
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{{math|{{mathbb|4}}, {{Unicode|𝟜}}|&&}}
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{{math|5{{sp|-6|tex}}5|$$}}
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U+1D7DD
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{{math|{{mathbb|5}}, {{Unicode|𝟝}}|&&}}
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{{math|6{{sp|-6|tex}}6|$$}}
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U+1D7DE
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{{math|{{mathbb|6}}, {{Unicode|𝟞}}|&&}}
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{{math|7{{sp|-6|tex}}7|$$}}
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U+1D7DF
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{{math|{{mathbb|7}}, {{Unicode|𝟟}}|&&}}
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{{math|8{{sp|-6|tex}}8|$$}}
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U+1D7E0
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{{math|{{mathbb|8}}, {{Unicode|𝟠}}|&&}}
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{{math|9{{sp|-6|tex}}9|$$}}
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U+1D7E1
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{{math|{{mathbb|9}}, {{Unicode|𝟡}}|&&}}
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