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Definition df-6 7977
Description: Define the number 6. (Contributed by NM, 27-May-1999.)
Assertion
Ref Expression
df-6  |-  6  =  ( 5  +  1 )

Detailed syntax breakdown of Definition df-6
StepHypRef Expression
1 c6 7968 . 2  class  6
2 c5 7967 . . 3  class  5
3 c1 6890 . . 3  class  1
4 caddc 6892 . . 3  class  +
52, 3, 4co 5512 . 2  class  ( 5  +  1 )
61, 5wceq 1243 1  wff  6  =  ( 5  +  1 )
Colors of variables: wff set class
This definition is referenced by:  6re  7996  6pos  8017  5p1e6  8047  3p3e6  8053  4p2e6  8054  5p2e7  8057  6nn  8081  5lt6  8096  6p6e12  8418  7p6e13  8421  8p6e14  8426  8p8e16  8428  9p6e15  8433  9p7e16  8434  6t6e36  8448  7t6e42  8453  8t6e48  8459  9t6e54  8466
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