Theorem 5p1e6 8553

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 8485	. 2 |- 6 = ( 5 + 1 )
2	1	eqcomi 2092	1 |- ( 5 + 1 ) = 6

Syntax hints:   = wceq 1289  (class class class)co 5652   1c1 7351   + caddc 7353   5c5 8476   6c6 8477

This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-mp 7  ax-ia1 104  ax-ia2 105  ax-ia3 106  ax-5 1381  ax-gen 1383  ax-ext 2070

This theorem depends on definitions:  df-bi 115  df-cleq 2081  df-6 8485

This theorem is referenced by:  8t8e64  8997  9t7e63  9003  fldiv4p1lem1div2  9712