Definition df-1nqqs 7159

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 7089	. 2 class 1Q
2		c1o 6306	. . . 4 class 1o
3	2, 2	cop 3530	. . 3 class <. 1o , 1o >.
4		ceq 7087	. . 3 class ~Q
5	3, 4	cec 6427	. 2 class [ <. 1o , 1o >. ] ~Q
6	1, 5	wceq 1331	1 wff 1Q = [ <. 1o , 1o >. ] ~Q

This definition is referenced by:  1nq  7174  1qec  7196  mulidnq  7197  1lt2nq  7214  addpinq1  7272  caucvgprlemm  7476  caucvgprprlemmu  7503  caucvgsr  7610  pitonnlem1  7653  nntopi  7702