Definition df-1 7628

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 7621	. 2 class 1
2		c1r 7107	. . 3 class 1R
3		c0r 7106	. . 3 class 0R
4	2, 3	cop 3530	. 2 class ⟨1R, 0R⟩
5	1, 4	wceq 1331	1 wff 1 = ⟨1R, 0R⟩

This definition is referenced by:  pitonnlem1  7653  pitonnlem2  7655  peano1nnnn  7660  peano2nnnn  7661  recidpirq  7666  ax1cn  7669  ax1re  7670  axi2m1  7683  ax0lt1  7684  ax1rid  7685  axprecex  7688  nntopi  7702