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Mirrors > Home > ILE Home > Th. List > acexmidlem2 | Unicode version |
Description: Lemma for acexmid 5773. This builds on acexmidlem1 5770 by noting that every
element of is
inhabited.
(Note that is not quite a function in the df-fun 5125 sense because it uses ordered pairs as described in opthreg 4471 rather than df-op 3536). The set is also found in onsucelsucexmidlem 4444. (Contributed by Jim Kingdon, 5-Aug-2019.) |
Ref | Expression |
---|---|
acexmidlem.a | |
acexmidlem.b | |
acexmidlem.c |
Ref | Expression |
---|---|
acexmidlem2 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-ral 2421 | . . . . 5 | |
2 | 19.23v 1855 | . . . . 5 | |
3 | 1, 2 | bitr2i 184 | . . . 4 |
4 | acexmidlem.c | . . . . . . . . 9 | |
5 | 4 | eleq2i 2206 | . . . . . . . 8 |
6 | vex 2689 | . . . . . . . . 9 | |
7 | 6 | elpr 3548 | . . . . . . . 8 |
8 | 5, 7 | bitri 183 | . . . . . . 7 |
9 | onsucelsucexmidlem1 4443 | . . . . . . . . . . 11 | |
10 | acexmidlem.a | . . . . . . . . . . 11 | |
11 | 9, 10 | eleqtrri 2215 | . . . . . . . . . 10 |
12 | elex2 2702 | . . . . . . . . . 10 | |
13 | 11, 12 | ax-mp 5 | . . . . . . . . 9 |
14 | eleq2 2203 | . . . . . . . . . 10 | |
15 | 14 | exbidv 1797 | . . . . . . . . 9 |
16 | 13, 15 | mpbiri 167 | . . . . . . . 8 |
17 | p0ex 4112 | . . . . . . . . . . . . 13 | |
18 | 17 | prid2 3630 | . . . . . . . . . . . 12 |
19 | eqid 2139 | . . . . . . . . . . . . 13 | |
20 | 19 | orci 720 | . . . . . . . . . . . 12 |
21 | eqeq1 2146 | . . . . . . . . . . . . . 14 | |
22 | 21 | orbi1d 780 | . . . . . . . . . . . . 13 |
23 | 22 | elrab 2840 | . . . . . . . . . . . 12 |
24 | 18, 20, 23 | mpbir2an 926 | . . . . . . . . . . 11 |
25 | acexmidlem.b | . . . . . . . . . . 11 | |
26 | 24, 25 | eleqtrri 2215 | . . . . . . . . . 10 |
27 | elex2 2702 | . . . . . . . . . 10 | |
28 | 26, 27 | ax-mp 5 | . . . . . . . . 9 |
29 | eleq2 2203 | . . . . . . . . . 10 | |
30 | 29 | exbidv 1797 | . . . . . . . . 9 |
31 | 28, 30 | mpbiri 167 | . . . . . . . 8 |
32 | 16, 31 | jaoi 705 | . . . . . . 7 |
33 | 8, 32 | sylbi 120 | . . . . . 6 |
34 | pm2.27 40 | . . . . . 6 | |
35 | 33, 34 | syl 14 | . . . . 5 |
36 | 35 | imp 123 | . . . 4 |
37 | 3, 36 | sylan2br 286 | . . 3 |
38 | 37 | ralimiaa 2494 | . 2 |
39 | 10, 25, 4 | acexmidlem1 5770 | . 2 |
40 | 38, 39 | syl 14 | 1 |
Colors of variables: wff set class |
Syntax hints: wn 3 wi 4 wa 103 wo 697 wal 1329 wceq 1331 wex 1468 wcel 1480 wral 2416 wrex 2417 wreu 2418 crab 2420 c0 3363 csn 3527 cpr 3528 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-in1 603 ax-in2 604 ax-io 698 ax-5 1423 ax-7 1424 ax-gen 1425 ax-ie1 1469 ax-ie2 1470 ax-8 1482 ax-10 1483 ax-11 1484 ax-i12 1485 ax-bndl 1486 ax-4 1487 ax-14 1492 ax-17 1506 ax-i9 1510 ax-ial 1514 ax-i5r 1515 ax-ext 2121 ax-sep 4046 ax-nul 4054 ax-pow 4098 |
This theorem depends on definitions: df-bi 116 df-3or 963 df-3an 964 df-tru 1334 df-nf 1437 df-sb 1736 df-eu 2002 df-clab 2126 df-cleq 2132 df-clel 2135 df-nfc 2270 df-ral 2421 df-rex 2422 df-reu 2423 df-rab 2425 df-v 2688 df-sbc 2910 df-dif 3073 df-un 3075 df-in 3077 df-ss 3084 df-nul 3364 df-pw 3512 df-sn 3533 df-pr 3534 df-uni 3737 df-tr 4027 df-iord 4288 df-on 4290 df-suc 4293 df-iota 5088 df-riota 5730 |
This theorem is referenced by: acexmidlemv 5772 |
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