Mathbox for Wolf Lammen |
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Mirrors > Home > MPE Home > Th. List > Mathboxes > wl-sbalnae | Structured version Visualization version Unicode version |
Description: A theorem used in elimination of disjoint variable restrictions by replacing them with distinctors. (Contributed by Wolf Lammen, 25-Jul-2019.) |
Ref | Expression |
---|---|
wl-sbalnae |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | sb4b 2358 | . . . . 5 | |
2 | nfnae 2318 | . . . . . . 7 | |
3 | nfnae 2318 | . . . . . . 7 | |
4 | 2, 3 | nfan 1828 | . . . . . 6 |
5 | nfeqf 2301 | . . . . . . 7 | |
6 | 19.21t 2073 | . . . . . . . 8 | |
7 | 6 | bicomd 213 | . . . . . . 7 |
8 | 5, 7 | syl 17 | . . . . . 6 |
9 | 4, 8 | albid 2090 | . . . . 5 |
10 | 1, 9 | sylan9bbr 737 | . . . 4 |
11 | nfnae 2318 | . . . . . . 7 | |
12 | sb4b 2358 | . . . . . . 7 | |
13 | 11, 12 | albid 2090 | . . . . . 6 |
14 | alcom 2037 | . . . . . 6 | |
15 | 13, 14 | syl6bb 276 | . . . . 5 |
16 | 15 | adantl 482 | . . . 4 |
17 | 10, 16 | bitr4d 271 | . . 3 |
18 | 17 | ex 450 | . 2 |
19 | sbequ12 2111 | . . . 4 | |
20 | 19 | sps 2055 | . . 3 |
21 | sbequ12 2111 | . . . . 5 | |
22 | 21 | sps 2055 | . . . 4 |
23 | 22 | dral2 2324 | . . 3 |
24 | 20, 23 | bitr3d 270 | . 2 |
25 | 18, 24 | pm2.61d2 172 | 1 |
Colors of variables: wff setvar class |
Syntax hints: wn 3 wi 4 wb 196 wa 384 wal 1481 wnf 1708 wsb 1880 |
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-10 2019 ax-11 2034 ax-12 2047 ax-13 2246 |
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 |
This theorem is referenced by: wl-sbal1 33346 wl-sbal2 33347 |
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