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Mirrors > Home > MPE Home > Th. List > ex-or | Structured version Visualization version GIF version |
Description: Example for df-or 384. Example by David A. Wheeler. (Contributed by Mario Carneiro, 9-May-2015.) |
Ref | Expression |
---|---|
ex-or | ⊢ (2 = 3 ∨ 4 = 4) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | eqid 2610 | . 2 ⊢ 4 = 4 | |
2 | 1 | olci 405 | 1 ⊢ (2 = 3 ∨ 4 = 4) |
Colors of variables: wff setvar class |
Syntax hints: ∨ wo 382 = wceq 1475 2c2 10947 3c3 10948 4c4 10949 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1713 ax-ext 2590 |
This theorem depends on definitions: df-bi 196 df-or 384 df-cleq 2603 |
This theorem is referenced by: (None) |
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