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Mirrors > Home > MPE Home > Th. List > ordunisuc2 | Structured version Visualization version Unicode version |
Description: An ordinal equal to its union contains the successor of each of its members. (Contributed by NM, 1-Feb-2005.) |
Ref | Expression |
---|---|
ordunisuc2 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | orduninsuc 7043 | . 2 | |
2 | ralnex 2992 | . . 3 | |
3 | suceloni 7013 | . . . . . . . . . 10 | |
4 | eloni 5733 | . . . . . . . . . 10 | |
5 | 3, 4 | syl 17 | . . . . . . . . 9 |
6 | ordtri3 5759 | . . . . . . . . 9 | |
7 | 5, 6 | sylan2 491 | . . . . . . . 8 |
8 | 7 | con2bid 344 | . . . . . . 7 |
9 | onnbtwn 5818 | . . . . . . . . . . . . 13 | |
10 | imnan 438 | . . . . . . . . . . . . 13 | |
11 | 9, 10 | sylibr 224 | . . . . . . . . . . . 12 |
12 | 11 | con2d 129 | . . . . . . . . . . 11 |
13 | pm2.21 120 | . . . . . . . . . . 11 | |
14 | 12, 13 | syl6 35 | . . . . . . . . . 10 |
15 | 14 | adantl 482 | . . . . . . . . 9 |
16 | ax-1 6 | . . . . . . . . . 10 | |
17 | 16 | a1i 11 | . . . . . . . . 9 |
18 | 15, 17 | jaod 395 | . . . . . . . 8 |
19 | eloni 5733 | . . . . . . . . . . . . . 14 | |
20 | ordtri2or 5822 | . . . . . . . . . . . . . 14 | |
21 | 19, 20 | sylan 488 | . . . . . . . . . . . . 13 |
22 | 21 | ancoms 469 | . . . . . . . . . . . 12 |
23 | 22 | orcomd 403 | . . . . . . . . . . 11 |
24 | 23 | adantr 481 | . . . . . . . . . 10 |
25 | ordsssuc2 5814 | . . . . . . . . . . . . 13 | |
26 | 25 | biimpd 219 | . . . . . . . . . . . 12 |
27 | 26 | adantr 481 | . . . . . . . . . . 11 |
28 | simpr 477 | . . . . . . . . . . 11 | |
29 | 27, 28 | orim12d 883 | . . . . . . . . . 10 |
30 | 24, 29 | mpd 15 | . . . . . . . . 9 |
31 | 30 | ex 450 | . . . . . . . 8 |
32 | 18, 31 | impbid 202 | . . . . . . 7 |
33 | 8, 32 | bitr3d 270 | . . . . . 6 |
34 | 33 | pm5.74da 723 | . . . . 5 |
35 | impexp 462 | . . . . . 6 | |
36 | simpr 477 | . . . . . . . 8 | |
37 | ordelon 5747 | . . . . . . . . . 10 | |
38 | 37 | ex 450 | . . . . . . . . 9 |
39 | 38 | ancrd 577 | . . . . . . . 8 |
40 | 36, 39 | impbid2 216 | . . . . . . 7 |
41 | 40 | imbi1d 331 | . . . . . 6 |
42 | 35, 41 | syl5bbr 274 | . . . . 5 |
43 | 34, 42 | bitrd 268 | . . . 4 |
44 | 43 | ralbidv2 2984 | . . 3 |
45 | 2, 44 | syl5bbr 274 | . 2 |
46 | 1, 45 | bitrd 268 | 1 |
Colors of variables: wff setvar class |
Syntax hints: wn 3 wi 4 wb 196 wo 383 wa 384 wceq 1483 wcel 1990 wral 2912 wrex 2913 wss 3574 cuni 4436 word 5722 con0 5723 csuc 5725 |
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-8 1992 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 ax-un 6949 |
This theorem depends on definitions: df-bi 197 df-or 385 df-an 386 df-3or 1038 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-ne 2795 df-ral 2917 df-rex 2918 df-rab 2921 df-v 3202 df-sbc 3436 df-dif 3577 df-un 3579 df-in 3581 df-ss 3588 df-pss 3590 df-nul 3916 df-if 4087 df-pw 4160 df-sn 4178 df-pr 4180 df-tp 4182 df-op 4184 df-uni 4437 df-br 4654 df-opab 4713 df-tr 4753 df-eprel 5029 df-po 5035 df-so 5036 df-fr 5073 df-we 5075 df-ord 5726 df-on 5727 df-suc 5729 |
This theorem is referenced by: dflim4 7048 limsuc2 37611 |
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