Definition df-1r 9460

Description: Define signed real constant 1. This is a "temporary" set used in the construction of complex numbers df-c 9519, and is intended to be used only by the construction. From Proposition 9-4.2 of [Gleason] p. 126. (Contributed by NM, 9-Aug-1995.) (New usage is discouraged.)

Assertion

Ref	Expression
df-1r

Detailed syntax breakdown of Definition df-1r

Step	Hyp	Ref	Expression
1		c1r 9266	. 2
2		c1p 9259	. . . . 5
3		cpp 9260	. . . . 5
4	2, 2, 3	co 6296	. . . 4
5	4, 2	cop 4035	. . 3
6		cer 9263	. . 3
7	5, 6	cec 7328	. 2
8	1, 7	wceq 1395	1

This definition is referenced by:  1sr  9479  m1p1sr  9490  m1m1sr  9491  0lt1sr  9493  1idsr  9496  recexsrlem  9501