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Definition df-1 6897
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 6890 . 2 class 1
2 c1r 6397 . . 3 class 1R
3 c0r 6396 . . 3 class 0R
42, 3cop 3378 . 2 class ⟨1R, 0R
51, 4wceq 1243 1 wff 1 = ⟨1R, 0R
Colors of variables: wff set class
This definition is referenced by:  pitonnlem1  6921  pitonnlem2  6923  peano1nnnn  6928  peano2nnnn  6929  recidpirq  6934  ax1cn  6937  ax1re  6938  axi2m1  6949  ax0lt1  6950  ax1rid  6951  axprecex  6954  nntopi  6968  ax-0lt1  6990
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