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Metamath Proof Explorer
Description: 5 + 1 = 6. (Contributed by Mario Carneiro, 18-Apr-2015)
|
|
Ref |
Expression |
|
Assertion |
5p1e6 |
⊢ ( 5 + 1 ) = 6 |
Proof
| Step |
Hyp |
Ref |
Expression |
| 1 |
|
df-6 |
⊢ 6 = ( 5 + 1 ) |
| 2 |
1
|
eqcomi |
⊢ ( 5 + 1 ) = 6 |