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Mirrors > Home > MPE Home > Th. List > limuni3 | Structured version Visualization version Unicode version |
Description: The union of a nonempty class of limit ordinals is a limit ordinal. (Contributed by NM, 1-Feb-2005.) |
Ref | Expression |
---|---|
limuni3 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | limeq 5735 | . . . . . . 7 | |
2 | 1 | rspcv 3305 | . . . . . 6 |
3 | vex 3203 | . . . . . . 7 | |
4 | limelon 5788 | . . . . . . 7 | |
5 | 3, 4 | mpan 706 | . . . . . 6 |
6 | 2, 5 | syl6com 37 | . . . . 5 |
7 | 6 | ssrdv 3609 | . . . 4 |
8 | ssorduni 6985 | . . . 4 | |
9 | 7, 8 | syl 17 | . . 3 |
10 | 9 | adantl 482 | . 2 |
11 | n0 3931 | . . . 4 | |
12 | 0ellim 5787 | . . . . . . 7 | |
13 | elunii 4441 | . . . . . . . 8 | |
14 | 13 | expcom 451 | . . . . . . 7 |
15 | 12, 14 | syl5 34 | . . . . . 6 |
16 | 2, 15 | syld 47 | . . . . 5 |
17 | 16 | exlimiv 1858 | . . . 4 |
18 | 11, 17 | sylbi 207 | . . 3 |
19 | 18 | imp 445 | . 2 |
20 | eluni2 4440 | . . . . 5 | |
21 | 1 | rspccv 3306 | . . . . . . 7 |
22 | limsuc 7049 | . . . . . . . . . . 11 | |
23 | 22 | anbi1d 741 | . . . . . . . . . 10 |
24 | elunii 4441 | . . . . . . . . . 10 | |
25 | 23, 24 | syl6bi 243 | . . . . . . . . 9 |
26 | 25 | expd 452 | . . . . . . . 8 |
27 | 26 | com3r 87 | . . . . . . 7 |
28 | 21, 27 | sylcom 30 | . . . . . 6 |
29 | 28 | rexlimdv 3030 | . . . . 5 |
30 | 20, 29 | syl5bi 232 | . . . 4 |
31 | 30 | ralrimiv 2965 | . . 3 |
32 | 31 | adantl 482 | . 2 |
33 | dflim4 7048 | . 2 | |
34 | 10, 19, 32, 33 | syl3anbrc 1246 | 1 |
Colors of variables: wff setvar class |
Syntax hints: wi 4 wa 384 wex 1704 wcel 1990 wne 2794 wral 2912 wrex 2913 cvv 3200 wss 3574 c0 3915 cuni 4436 word 5722 con0 5723 wlim 5724 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-lim 5728 df-suc 5729 |
This theorem is referenced by: (None) |
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