Definition df-1nqqs 7420

Description: Define positive fraction constant 1. This is a "temporary" set used in the construction of complex numbers, and is intended to be used only by the construction. From Proposition 9-2.2 of [Gleason] p. 117. (Contributed by NM, 29-Oct-1995.)

Assertion

Ref	Expression
df-1nqqs	|- 1Q = [ <. 1o , 1o >. ] ~Q

Detailed syntax breakdown of Definition df-1nqqs

Step	Hyp	Ref	Expression
1		c1q 7350	. 2 class 1Q
2		c1o 6468	. . . 4 class 1o
3	2, 2	cop 3626	. . 3 class <. 1o , 1o >.
4		ceq 7348	. . 3 class ~Q
5	3, 4	cec 6591	. 2 class [ <. 1o , 1o >. ] ~Q
6	1, 5	wceq 1364	1 wff 1Q = [ <. 1o , 1o >. ] ~Q

This definition is referenced by:  1nq  7435  1qec  7457  mulidnq  7458  1lt2nq  7475  addpinq1  7533  caucvgprlemm  7737  caucvgprprlemmu  7764  caucvgsr  7871  pitonnlem1  7914  nntopi  7963