Definition df-1 8040

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 8033	. 2 class 1
2		c1r 7519	. . 3 class 1R
3		c0r 7518	. . 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  8065  pitonnlem2  8067  peano1nnnn  8072  peano2nnnn  8073  recidpirq  8078  ax1cn  8081  ax1re  8082  axi2m1  8095  ax0lt1  8096  ax1rid  8097  axprecex  8100  nntopi  8114