Definition df-1 7719

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 7712	. 2 class 1
2		c1r 7198	. . 3 class 1R
3		c0r 7197	. . 3 class 0R
4	2, 3	cop 3559	. 2 class ⟨1R, 0R⟩
5	1, 4	wceq 1332	1 wff 1 = ⟨1R, 0R⟩

This definition is referenced by:  pitonnlem1  7744  pitonnlem2  7746  peano1nnnn  7751  peano2nnnn  7752  recidpirq  7757  ax1cn  7760  ax1re  7761  axi2m1  7774  ax0lt1  7775  ax1rid  7776  axprecex  7779  nntopi  7793