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Definition df-10OLD 10964
 Description: Define the number 10. See remarks under df-2 10956. (Contributed by NM, 5-Feb-2007.) Obsolete as of 9-Sep-2021. (New usage is discouraged.)
Assertion
Ref Expression
df-10OLD 10 = (9 + 1)

Detailed syntax breakdown of Definition df-10OLD
StepHypRef Expression
1 c10 10955 . 2 class 10
2 c9 10954 . . 3 class 9
3 c1 9816 . . 3 class 1
4 caddc 9818 . . 3 class +
52, 3, 4co 6549 . 2 class (9 + 1)
61, 5wceq 1475 1 wff 10 = (9 + 1)
 Colors of variables: wff setvar class This definition is referenced by:  10reOLD  10986  10posOLD  11000  9p1e10OLD  11036  5p5e10OLD  11045  6p4e10OLD  11048  7p3e10OLD  11050  8p2e10OLD  11051  10nnOLD  11070  9lt10OLD  11107  decsuccOLD  11427  9p2e11OLD  11496  0.999...OLD  14452  3dvdsOLD  14891  3dvdsdecOLD  14893  3dvds2decOLD  14895
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