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Mirrors > Home > ILE Home > Th. List > recclnq | Unicode version |
Description: Closure law for positive fraction reciprocal. (Contributed by NM, 6-Mar-1996.) (Revised by Mario Carneiro, 8-May-2013.) |
Ref | Expression |
---|---|
recclnq |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | recexnq 7352 | . 2 | |
2 | recmulnqg 7353 | . . . . . 6 | |
3 | 2 | biimpar 295 | . . . . 5 |
4 | eleq1a 2242 | . . . . . 6 | |
5 | 4 | ad2antlr 486 | . . . . 5 |
6 | 3, 5 | mpd 13 | . . . 4 |
7 | 6 | expl 376 | . . 3 |
8 | 7 | exlimdv 1812 | . 2 |
9 | 1, 8 | mpd 13 | 1 |
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