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
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—Thomas Jefferson (17431826)
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“The proof of a poet is that his country absorbs him as affectionately as he has absorbed it.”
—Walt Whitman (18191892)