Definition df-1 7906

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 7899	. 2 class 1
2		c1r 7385	. . 3 class 1R
3		c0r 7384	. . 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  7931  pitonnlem2  7933  peano1nnnn  7938  peano2nnnn  7939  recidpirq  7944  ax1cn  7947  ax1re  7948  axi2m1  7961  ax0lt1  7962  ax1rid  7963  axprecex  7966  nntopi  7980