Hint  Answer  % Correct 

∨  Disjunction, "or"  83%

R  Real Numbers  83%

C  Complex Numbers  72%

∧  Conjunction, "and"  72%

Δ  Delta  72%

∫  Integral / antiderivative  72%

∇  Nabla / Del  72%

N  Natural Numbers  72%

Q  Rational Numbers  72%

≡  Congruent, identically equal  67%

Z  Integers  67%

¬  Negation, "not"  67%

∑  Summation  67%

∪  Union  56%

∩  Intersection  50%

→, ⇒  Material conditional, "implies"  50%

∀  Universal Quantification, "for all"  50%

⊂  Set / Proper Subset  44%

⊆  Subset  39%

∏  Product  33%

⇔  Logical Equivalent, "if and only if"  28%

↔  Biconditional  22%

∉  "is not an element of"  22%

∂  Partial derivative, Boundary of a topological subspace  22%

H  Quaternions  22%

∈  Set Membership, "is an element of"  22%

∮  Contour Integral  17%

⊕, ⊻  Exclusive disjunction, "xor"  17%

∬, ∯  Surface Integral  17%

⊤  Down Tack / Verum  6%

∃  Existential Quantification, "There exists ... such that"  6%

⊥  Up Tack / Falsum  6%

⊔  Disjoint Union  0%

⊖  Symmetric difference  0%

∃!  Uniqueness Quantification, "There exists exactly one ... such that"  0%

Copyright H Brothers Inc, 2008–2023
Contact Us  Go To Top  View Mobile Site