![]() |
Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
|
Mirrors > Home > ILE Home > Th. List > 6p1e7 | GIF version |
Description: 6 + 1 = 7. (Contributed by Mario Carneiro, 18-Apr-2015.) |
Ref | Expression |
---|---|
6p1e7 | ⊢ (6 + 1) = 7 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-7 8584 | . 2 ⊢ 7 = (6 + 1) | |
2 | 1 | eqcomi 2099 | 1 ⊢ (6 + 1) = 7 |
Colors of variables: wff set class |
Syntax hints: = wceq 1296 (class class class)co 5690 1c1 7448 + caddc 7450 6c6 8575 7c7 8576 |
This theorem was proved from axioms: ax-1 5 ax-2 6 ax-mp 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-5 1388 ax-gen 1390 ax-ext 2077 |
This theorem depends on definitions: df-bi 116 df-cleq 2088 df-7 8584 |
This theorem is referenced by: 9t8e72 9103 |
Copyright terms: Public domain | W3C validator |