Definition df-1 7904

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 7897	. 2 class 1
2		c1r 7383	. . 3 class 1R
3		c0r 7382	. . 3 class 0R
4	2, 3	cop 3626	. 2 class ⟨1R, 0R⟩
5	1, 4	wceq 1364	1 wff 1 = ⟨1R, 0R⟩

This definition is referenced by:  pitonnlem1  7929  pitonnlem2  7931  peano1nnnn  7936  peano2nnnn  7937  recidpirq  7942  ax1cn  7945  ax1re  7946  axi2m1  7959  ax0lt1  7960  ax1rid  7961  axprecex  7964  nntopi  7978