Theorem 5p1e6 8047

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 7977	. 2 ⊢ 6 = (5 + 1)
2	1	eqcomi 2044	1 ⊢ (5 + 1) = 6

Syntax hints:   = wceq 1243  (class class class)co 5512  1c1 6890   + caddc 6892  5c5 7967  6c6 7968

This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-mp 7  ax-ia1 99  ax-ia2 100  ax-ia3 101  ax-5 1336  ax-gen 1338  ax-ext 2022

This theorem depends on definitions:  df-bi 110  df-cleq 2033  df-6 7977

This theorem is referenced by:  8t8e64  8461  9t7e63  8467  fldiv4p1lem1div2  9147