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Mirrors > Home > MPE Home > Th. List > vtocl4ga | Structured version Visualization version Unicode version |
Description: Implicit substitution of 4 classes for 4 setvar variables. (Contributed by AV, 22-Jan-2019.) |
Ref | Expression |
---|---|
vtocl4ga.1 | |
vtocl4ga.2 | |
vtocl4ga.3 | |
vtocl4ga.4 | |
vtocl4ga.5 |
Ref | Expression |
---|---|
vtocl4ga |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | eleq1 2689 | . . . . . 6 | |
2 | 1 | anbi1d 741 | . . . . 5 |
3 | 2 | anbi1d 741 | . . . 4 |
4 | vtocl4ga.1 | . . . 4 | |
5 | 3, 4 | imbi12d 334 | . . 3 |
6 | eleq1 2689 | . . . . . 6 | |
7 | 6 | anbi2d 740 | . . . . 5 |
8 | 7 | anbi1d 741 | . . . 4 |
9 | vtocl4ga.2 | . . . 4 | |
10 | 8, 9 | imbi12d 334 | . . 3 |
11 | eleq1 2689 | . . . . . 6 | |
12 | 11 | anbi1d 741 | . . . . 5 |
13 | 12 | anbi2d 740 | . . . 4 |
14 | vtocl4ga.3 | . . . 4 | |
15 | 13, 14 | imbi12d 334 | . . 3 |
16 | eleq1 2689 | . . . . . 6 | |
17 | 16 | anbi2d 740 | . . . . 5 |
18 | 17 | anbi2d 740 | . . . 4 |
19 | vtocl4ga.4 | . . . 4 | |
20 | 18, 19 | imbi12d 334 | . . 3 |
21 | vtocl4ga.5 | . . 3 | |
22 | 5, 10, 15, 20, 21 | vtocl4g 3277 | . 2 |
23 | 22 | pm2.43i 52 | 1 |
Colors of variables: wff setvar class |
Syntax hints: wi 4 wb 196 wa 384 wceq 1483 wcel 1990 |
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-v 3202 |
This theorem is referenced by: wrd2ind 13477 |
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