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Definition df-rq 9316
Description: Define reciprocal on positive fractions. It means the same thing as one divided by the argument (although we don't define full division since we will never need it). This is a "temporary" set used in the construction of complex numbers df-c 9519, and is intended to be used only by the construction. From Proposition 9-2.5 of [Gleason] p. 119, who uses an asterisk to denote this unary operation. (Contributed by NM, 6-Mar-1996.) (New usage is discouraged.)
Assertion
Ref Expression
df-rq

Detailed syntax breakdown of Definition df-rq
StepHypRef Expression
1 crq 9256 . 2
2 cmq 9255 . . . 4
32ccnv 5003 . . 3
4 c1q 9252 . . . 4
54csn 4029 . . 3
63, 5cima 5007 . 2
71, 6wceq 1395 1
Colors of variables: wff setvar class
This definition is referenced by:  recmulnq  9363  dmrecnq  9367
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