Theorem 5p1e6 8857

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 8783	. 2 |- 6 = ( 5 + 1 )
2	1	eqcomi 2143	1 |- ( 5 + 1 ) = 6

Syntax hints:   = wceq 1331  (class class class)co 5774   1c1 7621   + caddc 7623   5c5 8774   6c6 8775

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 1423  ax-gen 1425  ax-ext 2121

This theorem depends on definitions:  df-bi 116  df-cleq 2132  df-6 8783

This theorem is referenced by:  8t8e64  9302  9t7e63  9308  5recm6rec  9325  fldiv4p1lem1div2  10078