Definition df-m1r 5173

Description: Define signed real constant -1. This is a "temporary" set used in the construction of complex numbers df-c 5240, and is intended to be used only by the construction.

Assertion

Ref	Expression
df-m1r	|- -1R = [<.1P, (1P +P. 1P)>.] ~R

Detailed syntax breakdown of Definition df-m1r

Step	Hyp	Ref	Expression
1		cm1r 4996	. 2 class -1R
2		c1p 4986	. . . 4 class 1P
3		cpp 4987	. . . . 5 class +P.
4	2, 2, 3	co 3963	. . . 4 class (1P +P. 1P)
5	2, 4	cop 2411	. . 3 class <.1P, (1P +P. 1P)>.
6		cer 4992	. . 3 class ~R
7	5, 6	cec 4259	. 2 class [<.1P, (1P +P. 1P)>.] ~R
8	1, 7	wceq 956	1 wff -1R = [<.1P, (1P +P. 1P)>.] ~R

This definition is referenced by:  m1r 5191  m1p1sr 5201  m1m1sr 5202

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