Definition df-1 7882

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 7875	. 2 class 1
2		c1r 7361	. . 3 class 1R
3		c0r 7360	. . 3 class 0R
4	2, 3	cop 3622	. 2 class <. 1R , 0R >.
5	1, 4	wceq 1364	1 wff 1 = <. 1R , 0R >.

This definition is referenced by:  pitonnlem1  7907  pitonnlem2  7909  peano1nnnn  7914  peano2nnnn  7915  recidpirq  7920  ax1cn  7923  ax1re  7924  axi2m1  7937  ax0lt1  7938  ax1rid  7939  axprecex  7942  nntopi  7956