Theorem 5p1e6 8994

Description: 5 + 1 = 6. (Contributed by Mario Carneiro, 18-Apr-2015.)

Assertion

Ref	Expression
5p1e6	|- ( 5 + 1 ) = 6

Proof of Theorem 5p1e6

Step	Hyp	Ref	Expression
1		df-6 8920	. 2 |- 6 = ( 5 + 1 )
2	1	eqcomi 2169	1 |- ( 5 + 1 ) = 6

Syntax hints:   = wceq 1343  (class class class)co 5842   1c1 7754   + caddc 7756   5c5 8911   6c6 8912

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 105  ax-ia2 106  ax-ia3 107  ax-5 1435  ax-gen 1437  ax-ext 2147

This theorem depends on definitions:  df-bi 116  df-cleq 2158  df-6 8920

This theorem is referenced by:  8t8e64  9442  9t7e63  9448  5recm6rec  9465  fldiv4p1lem1div2  10240