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Mirrors > Home > ILE Home > Th. List > enq0breq | Unicode version |
Description: Equivalence relation for non-negative fractions in terms of natural numbers. (Contributed by NM, 27-Aug-1995.) |
Ref | Expression |
---|---|
enq0breq | ~Q0 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | oveq12 5521 | . . . . . 6 | |
2 | oveq12 5521 | . . . . . 6 | |
3 | 1, 2 | eqeqan12d 2055 | . . . . 5 |
4 | 3 | an42s 523 | . . . 4 |
5 | 4 | copsex4g 3984 | . . 3 |
6 | 5 | anbi2d 437 | . 2 |
7 | opexg 3964 | . . 3 | |
8 | opexg 3964 | . . 3 | |
9 | eleq1 2100 | . . . . . 6 | |
10 | 9 | anbi1d 438 | . . . . 5 |
11 | eqeq1 2046 | . . . . . . . 8 | |
12 | 11 | anbi1d 438 | . . . . . . 7 |
13 | 12 | anbi1d 438 | . . . . . 6 |
14 | 13 | 4exbidv 1750 | . . . . 5 |
15 | 10, 14 | anbi12d 442 | . . . 4 |
16 | eleq1 2100 | . . . . . 6 | |
17 | 16 | anbi2d 437 | . . . . 5 |
18 | eqeq1 2046 | . . . . . . . 8 | |
19 | 18 | anbi2d 437 | . . . . . . 7 |
20 | 19 | anbi1d 438 | . . . . . 6 |
21 | 20 | 4exbidv 1750 | . . . . 5 |
22 | 17, 21 | anbi12d 442 | . . . 4 |
23 | df-enq0 6522 | . . . 4 ~Q0 | |
24 | 15, 22, 23 | brabg 4006 | . . 3 ~Q0 |
25 | 7, 8, 24 | syl2an 273 | . 2 ~Q0 |
26 | opelxpi 4376 | . . . 4 | |
27 | opelxpi 4376 | . . . 4 | |
28 | 26, 27 | anim12i 321 | . . 3 |
29 | 28 | biantrurd 289 | . 2 |
30 | 6, 25, 29 | 3bitr4d 209 | 1 ~Q0 |
Colors of variables: wff set class |
Syntax hints: wi 4 wa 97 wb 98 wceq 1243 wex 1381 wcel 1393 cvv 2557 cop 3378 class class class wbr 3764 com 4313 cxp 4343 (class class class)co 5512 comu 5999 cnpi 6370 ~Q0 ceq0 6384 |
This theorem was proved from axioms: ax-1 5 ax-2 6 ax-mp 7 ax-ia1 99 ax-ia2 100 ax-ia3 101 ax-io 630 ax-5 1336 ax-7 1337 ax-gen 1338 ax-ie1 1382 ax-ie2 1383 ax-8 1395 ax-10 1396 ax-11 1397 ax-i12 1398 ax-bndl 1399 ax-4 1400 ax-14 1405 ax-17 1419 ax-i9 1423 ax-ial 1427 ax-i5r 1428 ax-ext 2022 ax-sep 3875 ax-pow 3927 ax-pr 3944 |
This theorem depends on definitions: df-bi 110 df-3an 887 df-tru 1246 df-nf 1350 df-sb 1646 df-eu 1903 df-mo 1904 df-clab 2027 df-cleq 2033 df-clel 2036 df-nfc 2167 df-ral 2311 df-rex 2312 df-v 2559 df-un 2922 df-in 2924 df-ss 2931 df-pw 3361 df-sn 3381 df-pr 3382 df-op 3384 df-uni 3581 df-br 3765 df-opab 3819 df-xp 4351 df-iota 4867 df-fv 4910 df-ov 5515 df-enq0 6522 |
This theorem is referenced by: enq0eceq 6535 nqnq0pi 6536 addcmpblnq0 6541 mulcmpblnq0 6542 mulcanenq0ec 6543 nnnq0lem1 6544 |
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