Definition df-1 7261

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 7254	. 2 class 1
2		c1r 6761	. . 3 class 1R
3		c0r 6760	. . 3 class 0R
4	2, 3	cop 3425	. 2 class <. 1R , 0R >.
5	1, 4	wceq 1285	1 wff 1 = <. 1R , 0R >.

This definition is referenced by:  pitonnlem1  7285  pitonnlem2  7287  peano1nnnn  7292  peano2nnnn  7293  recidpirq  7298  ax1cn  7301  ax1re  7302  axi2m1  7313  ax0lt1  7314  ax1rid  7315  axprecex  7318  nntopi  7332