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Definition df-1nqqs 7171
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
StepHypRef Expression
1 c1q 7101 . 2 class 1Q
2 c1o 6306 . . . 4 class 1o
32, 2cop 3530 . . 3 class ⟨1o, 1o
4 ceq 7099 . . 3 class ~Q
53, 4cec 6427 . 2 class [⟨1o, 1o⟩] ~Q
61, 5wceq 1331 1 wff 1Q = [⟨1o, 1o⟩] ~Q
Colors of variables: wff set class
This definition is referenced by:  1nq  7186  1qec  7208  mulidnq  7209  1lt2nq  7226  addpinq1  7284  caucvgprlemm  7488  caucvgprprlemmu  7515  caucvgsr  7622  pitonnlem1  7665  nntopi  7714
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