Definition df-1nqqs 7292

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 7222	. 2 class 1Q
2		c1o 6377	. . . 4 class 1o
3	2, 2	cop 3579	. . 3 class <. 1o , 1o >.
4		ceq 7220	. . 3 class ~Q
5	3, 4	cec 6499	. 2 class [ <. 1o , 1o >. ] ~Q
6	1, 5	wceq 1343	1 wff 1Q = [ <. 1o , 1o >. ] ~Q

This definition is referenced by:  1nq  7307  1qec  7329  mulidnq  7330  1lt2nq  7347  addpinq1  7405  caucvgprlemm  7609  caucvgprprlemmu  7636  caucvgsr  7743  pitonnlem1  7786  nntopi  7835