Definition df-1 8151

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 8144	. 2 class 1
2		c1r 7630	. . 3 class 1R
3		c0r 7629	. . 3 class 0R
4	2, 3	cop 3697	. 2 class ⟨1R, 0R⟩
5	1, 4	wceq 1398	1 wff 1 = ⟨1R, 0R⟩

This definition is referenced by:  pitonnlem1  8176  pitonnlem2  8178  peano1nnnn  8183  peano2nnnn  8184  recidpirq  8189  ax1cn  8192  ax1re  8193  axi2m1  8206  ax0lt1  8207  ax1rid  8208  axprecex  8211  nntopi  8225