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Mirrors > Home > MPE Home > Th. List > kmlem9 | Structured version Visualization version Unicode version |
Description: Lemma for 5-quantifier AC of Kurt Maes, Th. 4, part of 3 => 4. (Contributed by NM, 25-Mar-2004.) |
Ref | Expression |
---|---|
kmlem9.1 |
Ref | Expression |
---|---|
kmlem9 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | vex 3203 | . . . 4 | |
2 | eqeq1 2626 | . . . . 5 | |
3 | 2 | rexbidv 3052 | . . . 4 |
4 | kmlem9.1 | . . . 4 | |
5 | 1, 3, 4 | elab2 3354 | . . 3 |
6 | vex 3203 | . . . . 5 | |
7 | eqeq1 2626 | . . . . . 6 | |
8 | 7 | rexbidv 3052 | . . . . 5 |
9 | 6, 8, 4 | elab2 3354 | . . . 4 |
10 | difeq1 3721 | . . . . . . 7 | |
11 | sneq 4187 | . . . . . . . . . 10 | |
12 | 11 | difeq2d 3728 | . . . . . . . . 9 |
13 | 12 | unieqd 4446 | . . . . . . . 8 |
14 | 13 | difeq2d 3728 | . . . . . . 7 |
15 | 10, 14 | eqtrd 2656 | . . . . . 6 |
16 | 15 | eqeq2d 2632 | . . . . 5 |
17 | 16 | cbvrexv 3172 | . . . 4 |
18 | 9, 17 | bitri 264 | . . 3 |
19 | reeanv 3107 | . . . 4 | |
20 | eqeq12 2635 | . . . . . . . . . 10 | |
21 | 15, 20 | syl5ibr 236 | . . . . . . . . 9 |
22 | 21 | necon3d 2815 | . . . . . . . 8 |
23 | kmlem5 8976 | . . . . . . . . . 10 | |
24 | ineq12 3809 | . . . . . . . . . . 11 | |
25 | 24 | eqeq1d 2624 | . . . . . . . . . 10 |
26 | 23, 25 | syl5ibr 236 | . . . . . . . . 9 |
27 | 26 | expd 452 | . . . . . . . 8 |
28 | 22, 27 | syl5d 73 | . . . . . . 7 |
29 | 28 | com12 32 | . . . . . 6 |
30 | 29 | adantl 482 | . . . . 5 |
31 | 30 | rexlimivv 3036 | . . . 4 |
32 | 19, 31 | sylbir 225 | . . 3 |
33 | 5, 18, 32 | syl2anb 496 | . 2 |
34 | 33 | rgen2a 2977 | 1 |
Colors of variables: wff setvar class |
Syntax hints: wi 4 wa 384 wceq 1483 wcel 1990 cab 2608 wne 2794 wral 2912 wrex 2913 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-rex 2918 df-rab 2921 df-v 3202 df-dif 3577 df-in 3581 df-ss 3588 df-nul 3916 df-sn 4178 df-uni 4437 |
This theorem is referenced by: kmlem10 8981 |
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