Definition df-1 8003

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

Step	Hyp	Ref	Expression
1		c1 7996	. 2 class 1
2		c1r 7482	. . 3 class 1R
3		c0r 7481	. . 3 class 0R
4	2, 3	cop 3669	. 2 class ⟨1R, 0R⟩
5	1, 4	wceq 1395	1 wff 1 = ⟨1R, 0R⟩

This definition is referenced by:  pitonnlem1  8028  pitonnlem2  8030  peano1nnnn  8035  peano2nnnn  8036  recidpirq  8041  ax1cn  8044  ax1re  8045  axi2m1  8058  ax0lt1  8059  ax1rid  8060  axprecex  8063  nntopi  8077