Definition df-1 7821

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 7814	. 2 class 1
2		c1r 7300	. . 3 class 1R
3		c0r 7299	. . 3 class 0R
4	2, 3	cop 3597	. 2 class ⟨1R, 0R⟩
5	1, 4	wceq 1353	1 wff 1 = ⟨1R, 0R⟩

This definition is referenced by:  pitonnlem1  7846  pitonnlem2  7848  peano1nnnn  7853  peano2nnnn  7854  recidpirq  7859  ax1cn  7862  ax1re  7863  axi2m1  7876  ax0lt1  7877  ax1rid  7878  axprecex  7881  nntopi  7895