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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
StepHypRef Expression
1 df-6 8941 . 2  |-  6  =  ( 5  +  1 )
21eqcomi 2174 1  |-  ( 5  +  1 )  =  6
Colors of variables: wff set class
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
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