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Definition df-8 10069
Description: Define the number 8. (Contributed by NM, 27-May-1999.)
Assertion
Ref Expression
df-8  |-  8  =  ( 7  +  1 )

Detailed syntax breakdown of Definition df-8
StepHypRef Expression
1 c8 10060 . 2  class  8
2 c7 10059 . . 3  class  7
3 c1 8996 . . 3  class  1
4 caddc 8998 . . 3  class  +
52, 3, 4co 6084 . 2  class  ( 7  +  1 )
61, 5wceq 1653 1  wff  8  =  ( 7  +  1 )
Colors of variables: wff set class
This definition is referenced by:  8re  10083  8pos  10095  7p1e8  10113  4p4e8  10120  5p3e8  10122  6p2e8  10125  7p2e9  10128  8nn  10144  7lt8  10168  8p8e16  10448  9p8e17  10455  9p9e18  10456  8t8e64  10481  9t8e72  10488  log2ub  20794  lgsdir2lem1  21112  lgsdir2lem3  21114  rmydioph  27098
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