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35 Math Symbols You Don't Know

Type in the name of the math symbols. If I messed up on any, let me know.
Quiz by JRBerger
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Last updated: March 28, 2021
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First submittedMarch 28, 2021
Times taken75
Average score37.1%
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Hint
Answer
¬
Negation, "not"
∧
Conjunction, "and"
∨
Disjunction, "or"
⊕, ⊻
Exclusive disjunction, "xor"
→, ⇒
Material conditional, "implies"
↔
Biconditional
⇔
Logical Equivalent, "if and only if"
⊂
Set / Proper Subset
⊆
Subset
∪
Union
∩
Intersection
⊖
Symmetric difference
⊔
Disjoint Union
∀
Universal Quantification, "for all"
∃
Existential Quantification, "There exists ... such that"
∃!
Uniqueness Quantification, "There exists exactly one ... such that"
⊤
Down Tack / Verum
⊥
Up Tack / Falsum
Hint
Answer
∈
Set Membership, "is an element of"
∉
"is not an element of"
N
Natural Numbers
Z
Integers
Q
Rational Numbers
R
Real Numbers
C
Complex Numbers
H
Quaternions
∂
Partial derivative, Boundary of a topological subspace
∫
Integral / antiderivative
∮
Contour Integral
∬, ∯
Surface Integral
∇
Nabla / Del
Δ
Delta
∑
Summation
∏
Product
≡
Congruent, identically equal
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2 Comments
cpgatbyu
+2
Level 86
Mar 28, 2021
What you call "set", I call "proper subset".
JRBerger
+1
Level 23
Mar 28, 2021
Thank you, fixed!
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