Definition df-1 8039

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 8032	. 2 class 1
2		c1r 7518	. . 3 class 1R
3		c0r 7517	. . 3 class 0R
4	2, 3	cop 3672	. 2 class ⟨1R, 0R⟩
5	1, 4	wceq 1397	1 wff 1 = ⟨1R, 0R⟩

This definition is referenced by:  pitonnlem1  8064  pitonnlem2  8066  peano1nnnn  8071  peano2nnnn  8072  recidpirq  8077  ax1cn  8080  ax1re  8081  axi2m1  8094  ax0lt1  8095  ax1rid  8096  axprecex  8099  nntopi  8113