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Mirrors > Home > ILE Home > Th. List > halfnqq | Unicode version |
Description: One-half of any positive fraction is a fraction. (Contributed by Jim Kingdon, 23-Sep-2019.) |
Ref | Expression |
---|---|
halfnqq |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 1nq 6556 | . . . . . . . . 9 | |
2 | addclnq 6565 | . . . . . . . . 9 | |
3 | 1, 1, 2 | mp2an 416 | . . . . . . . 8 |
4 | recclnq 6582 | . . . . . . . . 9 | |
5 | 3, 4 | ax-mp 7 | . . . . . . . 8 |
6 | distrnqg 6577 | . . . . . . . 8 | |
7 | 3, 5, 5, 6 | mp3an 1268 | . . . . . . 7 |
8 | recidnq 6583 | . . . . . . . . 9 | |
9 | 3, 8 | ax-mp 7 | . . . . . . . 8 |
10 | 9, 9 | oveq12i 5544 | . . . . . . 7 |
11 | 7, 10 | eqtri 2101 | . . . . . 6 |
12 | 11 | oveq1i 5542 | . . . . 5 |
13 | 9 | oveq2i 5543 | . . . . . 6 |
14 | addclnq 6565 | . . . . . . . . 9 | |
15 | 5, 5, 14 | mp2an 416 | . . . . . . . 8 |
16 | mulassnqg 6574 | . . . . . . . 8 | |
17 | 15, 3, 5, 16 | mp3an 1268 | . . . . . . 7 |
18 | mulcomnqg 6573 | . . . . . . . . 9 | |
19 | 15, 3, 18 | mp2an 416 | . . . . . . . 8 |
20 | 19 | oveq1i 5542 | . . . . . . 7 |
21 | 17, 20 | eqtr3i 2103 | . . . . . 6 |
22 | 4, 4, 14 | syl2anc 403 | . . . . . . 7 |
23 | mulidnq 6579 | . . . . . . 7 | |
24 | 3, 22, 23 | mp2b 8 | . . . . . 6 |
25 | 13, 21, 24 | 3eqtr3i 2109 | . . . . 5 |
26 | 12, 25, 9 | 3eqtr3i 2109 | . . . 4 |
27 | 26 | oveq2i 5543 | . . 3 |
28 | distrnqg 6577 | . . . 4 | |
29 | 5, 5, 28 | mp3an23 1260 | . . 3 |
30 | mulidnq 6579 | . . 3 | |
31 | 27, 29, 30 | 3eqtr3a 2137 | . 2 |
32 | mulclnq 6566 | . . . 4 | |
33 | 5, 32 | mpan2 415 | . . 3 |
34 | id 19 | . . . . . 6 | |
35 | 34, 34 | oveq12d 5550 | . . . . 5 |
36 | 35 | eqeq1d 2089 | . . . 4 |
37 | 36 | adantl 271 | . . 3 |
38 | 33, 37 | rspcedv 2705 | . 2 |
39 | 31, 38 | mpd 13 | 1 |
Colors of variables: wff set class |
Syntax hints: wi 4 wb 103 wceq 1284 wcel 1433 wrex 2349 cfv 4922 (class class class)co 5532 cnq 6470 c1q 6471 cplq 6472 cmq 6473 crq 6474 |
This theorem was proved from axioms: ax-1 5 ax-2 6 ax-mp 7 ax-ia1 104 ax-ia2 105 ax-ia3 106 ax-in1 576 ax-in2 577 ax-io 662 ax-5 1376 ax-7 1377 ax-gen 1378 ax-ie1 1422 ax-ie2 1423 ax-8 1435 ax-10 1436 ax-11 1437 ax-i12 1438 ax-bndl 1439 ax-4 1440 ax-13 1444 ax-14 1445 ax-17 1459 ax-i9 1463 ax-ial 1467 ax-i5r 1468 ax-ext 2063 ax-coll 3893 ax-sep 3896 ax-nul 3904 ax-pow 3948 ax-pr 3964 ax-un 4188 ax-setind 4280 ax-iinf 4329 |
This theorem depends on definitions: df-bi 115 df-dc 776 df-3or 920 df-3an 921 df-tru 1287 df-fal 1290 df-nf 1390 df-sb 1686 df-eu 1944 df-mo 1945 df-clab 2068 df-cleq 2074 df-clel 2077 df-nfc 2208 df-ne 2246 df-ral 2353 df-rex 2354 df-reu 2355 df-rab 2357 df-v 2603 df-sbc 2816 df-csb 2909 df-dif 2975 df-un 2977 df-in 2979 df-ss 2986 df-nul 3252 df-pw 3384 df-sn 3404 df-pr 3405 df-op 3407 df-uni 3602 df-int 3637 df-iun 3680 df-br 3786 df-opab 3840 df-mpt 3841 df-tr 3876 df-id 4048 df-iord 4121 df-on 4123 df-suc 4126 df-iom 4332 df-xp 4369 df-rel 4370 df-cnv 4371 df-co 4372 df-dm 4373 df-rn 4374 df-res 4375 df-ima 4376 df-iota 4887 df-fun 4924 df-fn 4925 df-f 4926 df-f1 4927 df-fo 4928 df-f1o 4929 df-fv 4930 df-ov 5535 df-oprab 5536 df-mpt2 5537 df-1st 5787 df-2nd 5788 df-recs 5943 df-irdg 5980 df-1o 6024 df-oadd 6028 df-omul 6029 df-er 6129 df-ec 6131 df-qs 6135 df-ni 6494 df-pli 6495 df-mi 6496 df-plpq 6534 df-mpq 6535 df-enq 6537 df-nqqs 6538 df-plqqs 6539 df-mqqs 6540 df-1nqqs 6541 df-rq 6542 |
This theorem is referenced by: halfnq 6601 nsmallnqq 6602 subhalfnqq 6604 addlocpr 6726 addcanprleml 6804 addcanprlemu 6805 cauappcvgprlemm 6835 cauappcvgprlem1 6849 caucvgprlemm 6858 |
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