Proof
| Proposition | Derivation |
|---|---|
| Given | |
| Given | |
| Given | |
| Material implication | |
| Hypothetical syllogism | |
| Conjunction | |
| Law of Excluded Middle | |
| Constructive dilemma | |
| Tautology |
Read more about this topic: Disjunction Elimination
Famous quotes containing the word proof:
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—Herman Melville (18191891)
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—Philip Dormer Stanhope, 4th Earl Chesterfield (16941773)
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—Stephanie Martson (20th century)