Definition df-1 7508

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 7501	. 2 class 1
2		c1r 7008	. . 3 class 1R
3		c0r 7007	. . 3 class 0R
4	2, 3	cop 3477	. 2 class ⟨1R, 0R⟩
5	1, 4	wceq 1299	1 wff 1 = ⟨1R, 0R⟩

This definition is referenced by:  pitonnlem1  7532  pitonnlem2  7534  peano1nnnn  7539  peano2nnnn  7540  recidpirq  7545  ax1cn  7548  ax1re  7549  axi2m1  7560  ax0lt1  7561  ax1rid  7562  axprecex  7565  nntopi  7579