Definition df-1 7652

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 7645	. 2 class 1
2		c1r 7131	. . 3 class 1R
3		c0r 7130	. . 3 class 0R
4	2, 3	cop 3535	. 2 class <. 1R , 0R >.
5	1, 4	wceq 1332	1 wff 1 = <. 1R , 0R >.

This definition is referenced by:  pitonnlem1  7677  pitonnlem2  7679  peano1nnnn  7684  peano2nnnn  7685  recidpirq  7690  ax1cn  7693  ax1re  7694  axi2m1  7707  ax0lt1  7708  ax1rid  7709  axprecex  7712  nntopi  7726