Definition df-1 8023

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 8016	. 2 class 1
2		c1r 7502	. . 3 class 1R
3		c0r 7501	. . 3 class 0R
4	2, 3	cop 3669	. 2 class <. 1R , 0R >.
5	1, 4	wceq 1395	1 wff 1 = <. 1R , 0R >.

This definition is referenced by:  pitonnlem1  8048  pitonnlem2  8050  peano1nnnn  8055  peano2nnnn  8056  recidpirq  8061  ax1cn  8064  ax1re  8065  axi2m1  8078  ax0lt1  8079  ax1rid  8080  axprecex  8083  nntopi  8097