Theorem 5p1e6 9174

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 9099	. 2 ⊢ 6 = (5 + 1)
2	1	eqcomi 2209	1 ⊢ (5 + 1) = 6

Syntax hints:   = wceq 1373  (class class class)co 5944  1c1 7926   + caddc 7928  5c5 9090  6c6 9091

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108  ax-5 1470  ax-gen 1472  ax-ext 2187

This theorem depends on definitions:  df-bi 117  df-cleq 2198  df-6 9099

This theorem is referenced by:  8t8e64  9624  9t7e63  9630  5recm6rec  9647  fldiv4p1lem1div2  10448  5ndvds6  12246