Logic Symbols – List of all logical symbols and signs – meaning and examples.
Symbol | Symbol Name | Meaning / definition | Example |
---|---|---|---|
· | and | and | x · y |
^ | caret / circumflex | and | x ^ y |
& | ampersand | and | x & y |
+ | plus | or | x + y |
∨ | reversed caret | or | x ∨ 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 | x ⊕ y |
~ | 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 |