Theorem 5p1e6 8169

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 8102	. 2 ⊢ 6 = (5 + 1)
2	1	eqcomi 2085	1 ⊢ (5 + 1) = 6

Syntax hints:   = wceq 1284  (class class class)co 5532  1c1 6982   + caddc 6984  5c5 8092  6c6 8093

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 1376  ax-gen 1378  ax-ext 2063

This theorem depends on definitions:  df-bi 115  df-cleq 2074  df-6 8102

This theorem is referenced by:  8t8e64  8597  9t7e63  8603  fldiv4p1lem1div2  9307