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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 |
