Definition df-1 7887

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 7880	. 2 class 1
2		c1r 7366	. . 3 class 1R
3		c0r 7365	. . 3 class 0R
4	2, 3	cop 3625	. 2 class ⟨1R, 0R⟩
5	1, 4	wceq 1364	1 wff 1 = ⟨1R, 0R⟩

This definition is referenced by:  pitonnlem1  7912  pitonnlem2  7914  peano1nnnn  7919  peano2nnnn  7920  recidpirq  7925  ax1cn  7928  ax1re  7929  axi2m1  7942  ax0lt1  7943  ax1rid  7944  axprecex  7947  nntopi  7961