Definition df-1 8100

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 8093	. 2 class 1
2		c1r 7579	. . 3 class 1R
3		c0r 7578	. . 3 class 0R
4	2, 3	cop 3676	. 2 class <. 1R , 0R >.
5	1, 4	wceq 1398	1 wff 1 = <. 1R , 0R >.

This definition is referenced by:  pitonnlem1  8125  pitonnlem2  8127  peano1nnnn  8132  peano2nnnn  8133  recidpirq  8138  ax1cn  8141  ax1re  8142  axi2m1  8155  ax0lt1  8156  ax1rid  8157  axprecex  8160  nntopi  8174