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Mirrors > Home > MPE Home > Th. List > kmlem4 | Structured version Visualization version Unicode version |
Description: Lemma for 5-quantifier AC of Kurt Maes, Th. 4, part of 3 => 4. (Contributed by NM, 26-Mar-2004.) |
Ref | Expression |
---|---|
kmlem4 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | eleq1 2689 | . . . . . . 7 | |
2 | neeq2 2857 | . . . . . . 7 | |
3 | 1, 2 | anbi12d 747 | . . . . . 6 |
4 | elequ2 2004 | . . . . . . 7 | |
5 | 4 | notbid 308 | . . . . . 6 |
6 | 3, 5 | imbi12d 334 | . . . . 5 |
7 | 6 | spv 2260 | . . . 4 |
8 | eldif 3584 | . . . . 5 | |
9 | simpr 477 | . . . . . 6 | |
10 | eluni 4439 | . . . . . . . 8 | |
11 | 10 | notbii 310 | . . . . . . 7 |
12 | alnex 1706 | . . . . . . 7 | |
13 | con2b 349 | . . . . . . . . 9 | |
14 | imnan 438 | . . . . . . . . 9 | |
15 | eldifsn 4317 | . . . . . . . . . . 11 | |
16 | necom 2847 | . . . . . . . . . . . 12 | |
17 | 16 | anbi2i 730 | . . . . . . . . . . 11 |
18 | 15, 17 | bitri 264 | . . . . . . . . . 10 |
19 | 18 | imbi1i 339 | . . . . . . . . 9 |
20 | 13, 14, 19 | 3bitr3i 290 | . . . . . . . 8 |
21 | 20 | albii 1747 | . . . . . . 7 |
22 | 11, 12, 21 | 3bitr2i 288 | . . . . . 6 |
23 | 9, 22 | sylib 208 | . . . . 5 |
24 | 8, 23 | sylbi 207 | . . . 4 |
25 | 7, 24 | syl11 33 | . . 3 |
26 | 25 | ralrimiv 2965 | . 2 |
27 | disj 4017 | . 2 | |
28 | 26, 27 | sylibr 224 | 1 |
Colors of variables: wff setvar class |
Syntax hints: wn 3 wi 4 wa 384 wal 1481 wceq 1483 wex 1704 wcel 1990 wne 2794 wral 2912 cdif 3571 cin 3573 c0 3915 csn 4177 cuni 4436 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1722 ax-4 1737 ax-5 1839 ax-6 1888 ax-7 1935 ax-9 1999 ax-10 2019 ax-11 2034 ax-12 2047 ax-13 2246 ax-ext 2602 |
This theorem depends on definitions: df-bi 197 df-or 385 df-an 386 df-tru 1486 df-ex 1705 df-nf 1710 df-sb 1881 df-clab 2609 df-cleq 2615 df-clel 2618 df-nfc 2753 df-ne 2795 df-ral 2917 df-v 3202 df-dif 3577 df-in 3581 df-nul 3916 df-sn 4178 df-uni 4437 |
This theorem is referenced by: kmlem5 8976 kmlem11 8982 |
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