Definition df-1 6897

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 6890	. 2 class 1
2		c1r 6397	. . 3 class 1R
3		c0r 6396	. . 3 class 0R
4	2, 3	cop 3378	. 2 class <. 1R , 0R >.
5	1, 4	wceq 1243	1 wff 1 = <. 1R , 0R >.

This definition is referenced by:  pitonnlem1  6921  pitonnlem2  6923  peano1nnnn  6928  peano2nnnn  6929  recidpirq  6934  ax1cn  6937  ax1re  6938  axi2m1  6949  ax0lt1  6950  ax1rid  6951  axprecex  6954  nntopi  6968  ax-0lt1  6990