Theorem 5p1e6 9015

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 8941	. 2 ⊢ 6 = (5 + 1)
2	1	eqcomi 2174	1 ⊢ (5 + 1) = 6

Syntax hints:   = wceq 1348  (class class class)co 5853  1c1 7775   + caddc 7777  5c5 8932  6c6 8933

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 1440  ax-gen 1442  ax-ext 2152

This theorem depends on definitions:  df-bi 116  df-cleq 2163  df-6 8941

This theorem is referenced by:  8t8e64  9463  9t7e63  9469  5recm6rec  9486  fldiv4p1lem1div2  10261