(c) 2017 by Barton Paul Levenson
| Symbol | Meaning |
|---|---|
| ¬ | not |
| ∀ | for all |
| ∃ | there exists at least one |
| ∄ | nothing exists such that |
| ∧ | and |
| ∨ | or |
| ∴ | therefore |
| → | implies |
| ↔ | if and only if |
| ≡ | is logically equivalent to |
| Page created: | 04/04/2017 |
| Last modified: | 04/15/2017 |
| Author: | BPL |