Definition df-1nqqs 7571

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 7501	. 2 class 1Q
2		c1o 6575	. . . 4 class 1o
3	2, 2	cop 3672	. . 3 class <. 1o , 1o >.
4		ceq 7499	. . 3 class ~Q
5	3, 4	cec 6700	. 2 class [ <. 1o , 1o >. ] ~Q
6	1, 5	wceq 1397	1 wff 1Q = [ <. 1o , 1o >. ] ~Q

This definition is referenced by:  1nq  7586  1qec  7608  mulidnq  7609  1lt2nq  7626  addpinq1  7684  caucvgprlemm  7888  caucvgprprlemmu  7915  caucvgsr  8022  pitonnlem1  8065  nntopi  8114