Theorem 5p1e6 8607

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 8539	. 2 ⊢ 6 = (5 + 1)
2	1	eqcomi 2093	1 ⊢ (5 + 1) = 6

Syntax hints:   = wceq 1290  (class class class)co 5666  1c1 7405   + caddc 7407  5c5 8530  6c6 8531

This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-mp 7  ax-ia1 105  ax-ia2 106  ax-ia3 107  ax-5 1382  ax-gen 1384  ax-ext 2071

This theorem depends on definitions:  df-bi 116  df-cleq 2082  df-6 8539

This theorem is referenced by:  8t8e64  9051  9t7e63  9057  fldiv4p1lem1div2  9766