Logic Symbols

Logic Symbols – List of all logical symbols and signs – meaning and examples.

Symbol Symbol Name Meaning / definition Example
· and and · y
^ caret / circumflex and x ^ y
& ampersand and x & y
+ plus or x + y
reversed caret or y
| vertical line or x | y
x single quote not – negation x
x bar not – negation x
¬ not not – negation ¬ x
! exclamation mark not – negation ! x
circled plus / oplus exclusive or – xor xy
~ tilde negation ~ x
implies
equivalent if and only if (iff)
equivalent if and only if (iff)
for all
there exists
there does not exists
therefore
because / since

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