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Definition df-1 6955
Description: Define the complex number 1. (Contributed by NM, 22-Feb-1996.)
Assertion
Ref Expression
df-1 1 = ⟨1R, 0R

Detailed syntax breakdown of Definition df-1
StepHypRef Expression
1 c1 6948 . 2 class 1
2 c1r 6455 . . 3 class 1R
3 c0r 6454 . . 3 class 0R
42, 3cop 3406 . 2 class ⟨1R, 0R
51, 4wceq 1259 1 wff 1 = ⟨1R, 0R
Colors of variables: wff set class
This definition is referenced by:  pitonnlem1  6979  pitonnlem2  6981  peano1nnnn  6986  peano2nnnn  6987  recidpirq  6992  ax1cn  6995  ax1re  6996  axi2m1  7007  ax0lt1  7008  ax1rid  7009  axprecex  7012  nntopi  7026  ax-0lt1  7048
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