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Theorem 5p1e6 8120
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 8053 . 2 6 = (5 + 1)
21eqcomi 2060 1 (5 + 1) = 6
Colors of variables: wff set class
Syntax hints:   = wceq 1259  (class class class)co 5540  1c1 6948   + caddc 6950  5c5 8043  6c6 8044
This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-mp 7  ax-ia1 103  ax-ia2 104  ax-ia3 105  ax-5 1352  ax-gen 1354  ax-ext 2038
This theorem depends on definitions:  df-bi 114  df-cleq 2049  df-6 8053
This theorem is referenced by:  8t8e64  8547  9t7e63  8553  fldiv4p1lem1div2  9255
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