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Definition df-1 9698
Description: Define the complex number 1. (Contributed by NM, 22-Feb-1996.) (New usage is discouraged.)
Assertion
Ref Expression
df-1 1 = ⟨1R, 0R

Detailed syntax breakdown of Definition df-1
StepHypRef Expression
1 c1 9691 . 2 class 1
2 c1r 9443 . . 3 class 1R
3 c0r 9442 . . 3 class 0R
42, 3cop 4034 . 2 class ⟨1R, 0R
51, 4wceq 1474 1 wff 1 = ⟨1R, 0R
Colors of variables: wff setvar class
This definition is referenced by:  ax1cn  9724  axi2m1  9734  ax1ne0  9735  ax1rid  9736  axrrecex  9738
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