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Mirrors > Home > MPE Home > Th. List > Mathboxes > dfhe3 | Structured version Visualization version Unicode version |
Description: The property of relation being hereditary in class . (Contributed by RP, 27-Mar-2020.) |
Ref | Expression |
---|---|
dfhe3 | hereditary |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-he 38067 | . 2 hereditary | |
2 | 19.21v 1868 | . . . . . 6 | |
3 | 2 | bicomi 214 | . . . . 5 |
4 | 3 | albii 1747 | . . . 4 |
5 | alcom 2037 | . . . 4 | |
6 | impexp 462 | . . . . . . . 8 | |
7 | 6 | bicomi 214 | . . . . . . 7 |
8 | 7 | albii 1747 | . . . . . 6 |
9 | 19.23v 1902 | . . . . . 6 | |
10 | 8, 9 | bitri 264 | . . . . 5 |
11 | 10 | albii 1747 | . . . 4 |
12 | 4, 5, 11 | 3bitri 286 | . . 3 |
13 | dfss2 3591 | . . . . 5 | |
14 | vex 3203 | . . . . . . . 8 | |
15 | opeq2 4403 | . . . . . . . . . . . 12 | |
16 | 15 | eleq1d 2686 | . . . . . . . . . . 11 |
17 | df-br 4654 | . . . . . . . . . . 11 | |
18 | 16, 17 | syl6bbr 278 | . . . . . . . . . 10 |
19 | 18 | anbi2d 740 | . . . . . . . . 9 |
20 | 19 | exbidv 1850 | . . . . . . . 8 |
21 | 14, 20 | elab 3350 | . . . . . . 7 |
22 | 21 | imbi1i 339 | . . . . . 6 |
23 | 22 | albii 1747 | . . . . 5 |
24 | 13, 23 | bitr2i 265 | . . . 4 |
25 | dfima3 5469 | . . . . . 6 | |
26 | 25 | eqcomi 2631 | . . . . 5 |
27 | 26 | sseq1i 3629 | . . . 4 |
28 | 24, 27 | bitri 264 | . . 3 |
29 | 12, 28 | bitr2i 265 | . 2 |
30 | 1, 29 | bitri 264 | 1 hereditary |
Colors of variables: wff setvar class |
Syntax hints: wi 4 wb 196 wa 384 wal 1481 wex 1704 wcel 1990 cab 2608 wss 3574 cop 4183 class class class wbr 4653 cima 5117 hereditary whe 38066 |
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 ax-sep 4781 ax-nul 4789 ax-pr 4906 |
This theorem depends on definitions: df-bi 197 df-or 385 df-an 386 df-3an 1039 df-tru 1486 df-ex 1705 df-nf 1710 df-sb 1881 df-eu 2474 df-mo 2475 df-clab 2609 df-cleq 2615 df-clel 2618 df-nfc 2753 df-ral 2917 df-rex 2918 df-rab 2921 df-v 3202 df-dif 3577 df-un 3579 df-in 3581 df-ss 3588 df-nul 3916 df-if 4087 df-sn 4178 df-pr 4180 df-op 4184 df-br 4654 df-opab 4713 df-xp 5120 df-cnv 5122 df-dm 5124 df-rn 5125 df-res 5126 df-ima 5127 df-he 38067 |
This theorem is referenced by: psshepw 38082 dffrege69 38226 |
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