Definition df-1 7933

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 7926	. 2 class 1
2		c1r 7412	. . 3 class 1R
3		c0r 7411	. . 3 class 0R
4	2, 3	cop 3636	. 2 class <. 1R , 0R >.
5	1, 4	wceq 1373	1 wff 1 = <. 1R , 0R >.

This definition is referenced by:  pitonnlem1  7958  pitonnlem2  7960  peano1nnnn  7965  peano2nnnn  7966  recidpirq  7971  ax1cn  7974  ax1re  7975  axi2m1  7988  ax0lt1  7989  ax1rid  7990  axprecex  7993  nntopi  8007