Definition df-1nqqs 7561

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 7491	. 2 class 1Q
2		c1o 6570	. . . 4 class 1o
3	2, 2	cop 3670	. . 3 class ⟨1o, 1o⟩
4		ceq 7489	. . 3 class ~Q
5	3, 4	cec 6695	. 2 class [⟨1o, 1o⟩] ~Q
6	1, 5	wceq 1395	1 wff 1Q = [⟨1o, 1o⟩] ~Q

This definition is referenced by:  1nq  7576  1qec  7598  mulidnq  7599  1lt2nq  7616  addpinq1  7674  caucvgprlemm  7878  caucvgprprlemmu  7905  caucvgsr  8012  pitonnlem1  8055  nntopi  8104