Definition df-1 7968

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 7961	. 2 class 1
2		c1r 7447	. . 3 class 1R
3		c0r 7446	. . 3 class 0R
4	2, 3	cop 3646	. 2 class <. 1R , 0R >.
5	1, 4	wceq 1373	1 wff 1 = <. 1R , 0R >.

This definition is referenced by:  pitonnlem1  7993  pitonnlem2  7995  peano1nnnn  8000  peano2nnnn  8001  recidpirq  8006  ax1cn  8009  ax1re  8010  axi2m1  8023  ax0lt1  8024  ax1rid  8025  axprecex  8028  nntopi  8042