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| Mirrors > Home > QLE Home > Th. List > ax-wdol | GIF version | ||
| Description: The WDOL (weakly distributive ortholattice) axiom. |
| Ref | Expression |
|---|---|
| ax-wdol | ((a ≡ b) ∪ (a ≡ b⊥ )) = 1 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | wva | . . . 4 term a | |
| 2 | wvb | . . . 4 term b | |
| 3 | 1, 2 | tb 5 | . . 3 term (a ≡ b) |
| 4 | 2 | wn 4 | . . . 4 term b⊥ |
| 5 | 1, 4 | tb 5 | . . 3 term (a ≡ b⊥ ) |
| 6 | 3, 5 | wo 6 | . 2 term ((a ≡ b) ∪ (a ≡ b⊥ )) |
| 7 | wt 8 | . 2 term 1 | |
| 8 | 6, 7 | wb 1 | 1 wff ((a ≡ b) ∪ (a ≡ b⊥ )) = 1 |
| Colors of variables: term |
| This axiom is referenced by: wdcom 1103 |
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