Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
Mirrors > Home > ILE Home > Th. List > ex-or | GIF version |
Description: Example for ax-io 630. 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 2040 | . 2 ⊢ 4 = 4 | |
2 | 1 | olci 651 | 1 ⊢ (2 = 3 ∨ 4 = 4) |
Colors of variables: wff set class |
Syntax hints: ∨ wo 629 = wceq 1243 2c2 7964 3c3 7965 4c4 7966 |
This theorem was proved from axioms: ax-1 5 ax-2 6 ax-mp 7 ax-ia1 99 ax-ia2 100 ax-ia3 101 ax-io 630 ax-gen 1338 ax-ext 2022 |
This theorem depends on definitions: df-bi 110 df-cleq 2033 |
This theorem is referenced by: (None) |
Copyright terms: Public domain | W3C validator |