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Mirrors > Home > MPE Home > Th. List > fin1a2s | Structured version Visualization version Unicode version |
Description: An II-infinite set can have an I-infinite part broken off and remain II-infinite. (Contributed by Stefan O'Rear, 8-Nov-2014.) (Proof shortened by Mario Carneiro, 17-May-2015.) |
Ref | Expression |
---|---|
fin1a2s | FinII FinII |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | elpwi 4168 | . . . 4 | |
2 | fin12 9235 | . . . . . . . . . . 11 FinII | |
3 | fin23 9211 | . . . . . . . . . . 11 FinII FinIII | |
4 | 2, 3 | syl 17 | . . . . . . . . . 10 FinIII |
5 | fin23 9211 | . . . . . . . . . 10 FinII FinIII | |
6 | 4, 5 | orim12i 538 | . . . . . . . . 9 FinII FinIII FinIII |
7 | 6 | ralimi 2952 | . . . . . . . 8 FinII FinIII FinIII |
8 | fin1a2lem8 9229 | . . . . . . . 8 FinIII FinIII FinIII | |
9 | 7, 8 | sylan2 491 | . . . . . . 7 FinII FinIII |
10 | 9 | adantr 481 | . . . . . 6 FinII [] FinIII |
11 | simplrl 800 | . . . . . . . . . 10 [] FinII | |
12 | simprrr 805 | . . . . . . . . . . 11 [] [] | |
13 | 12 | adantr 481 | . . . . . . . . . 10 [] FinII [] |
14 | simprl 794 | . . . . . . . . . 10 [] FinII | |
15 | simplrl 800 | . . . . . . . . . . . . . 14 [] | |
16 | ssralv 3666 | . . . . . . . . . . . . . 14 FinII FinII | |
17 | 15, 16 | syl 17 | . . . . . . . . . . . . 13 [] FinII FinII |
18 | idd 24 | . . . . . . . . . . . . . . 15 [] | |
19 | fin1a2lem13 9234 | . . . . . . . . . . . . . . . . . . . . . . 23 [] FinII | |
20 | 19 | ex 450 | . . . . . . . . . . . . . . . . . . . . . 22 [] FinII |
21 | 20 | 3expa 1265 | . . . . . . . . . . . . . . . . . . . . 21 [] FinII |
22 | 21 | adantlrl 756 | . . . . . . . . . . . . . . . . . . . 20 [] FinII |
23 | 22 | adantll 750 | . . . . . . . . . . . . . . . . . . 19 [] FinII |
24 | 23 | imp 445 | . . . . . . . . . . . . . . . . . 18 [] FinII |
25 | 24 | ancom2s 844 | . . . . . . . . . . . . . . . . 17 [] FinII |
26 | 25 | expr 643 | . . . . . . . . . . . . . . . 16 [] FinII |
27 | 26 | con4d 114 | . . . . . . . . . . . . . . 15 [] FinII |
28 | 18, 27 | jaod 395 | . . . . . . . . . . . . . 14 [] FinII |
29 | 28 | ralimdva 2962 | . . . . . . . . . . . . 13 [] FinII |
30 | 17, 29 | syld 47 | . . . . . . . . . . . 12 [] FinII |
31 | 30 | impr 649 | . . . . . . . . . . 11 [] FinII |
32 | dfss3 3592 | . . . . . . . . . . 11 | |
33 | 31, 32 | sylibr 224 | . . . . . . . . . 10 [] FinII |
34 | simprrl 804 | . . . . . . . . . . 11 [] | |
35 | 34 | adantr 481 | . . . . . . . . . 10 [] FinII |
36 | fin1a2lem12 9233 | . . . . . . . . . 10 [] FinIII | |
37 | 11, 13, 14, 33, 35, 36 | syl32anc 1334 | . . . . . . . . 9 [] FinII FinIII |
38 | 37 | expr 643 | . . . . . . . 8 [] FinII FinIII |
39 | 38 | impancom 456 | . . . . . . 7 [] FinII FinIII |
40 | 39 | an32s 846 | . . . . . 6 FinII [] FinIII |
41 | 10, 40 | mt4d 152 | . . . . 5 FinII [] |
42 | 41 | exp32 631 | . . . 4 FinII [] |
43 | 1, 42 | syl5 34 | . . 3 FinII [] |
44 | 43 | ralrimiv 2965 | . 2 FinII [] |
45 | isfin2 9116 | . . 3 FinII [] | |
46 | 45 | adantr 481 | . 2 FinII FinII [] |
47 | 44, 46 | mpbird 247 | 1 FinII FinII |
Colors of variables: wff setvar class |
Syntax hints: wn 3 wi 4 wb 196 wo 383 wa 384 w3a 1037 wcel 1990 wne 2794 wral 2912 cdif 3571 wss 3574 c0 3915 cpw 4158 cuni 4436 wor 5034 [] crpss 6936 cfn 7955 FinIIcfin2 9101 FinIIIcfin3 9103 |
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-rep 4771 ax-sep 4781 ax-nul 4789 ax-pow 4843 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-reu 2919 df-rmo 2920 df-rab 2921 df-v 3202 df-sbc 3436 df-csb 3534 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-int 4476 df-iun 4522 df-br 4654 df-opab 4713 df-mpt 4730 df-tr 4753 df-id 5024 df-eprel 5029 df-po 5035 df-so 5036 df-fr 5073 df-se 5074 df-we 5075 df-xp 5120 df-rel 5121 df-cnv 5122 df-co 5123 df-dm 5124 df-rn 5125 df-res 5126 df-ima 5127 df-pred 5680 df-ord 5726 df-on 5727 df-lim 5728 df-suc 5729 df-iota 5851 df-fun 5890 df-fn 5891 df-f 5892 df-f1 5893 df-fo 5894 df-f1o 5895 df-fv 5896 df-isom 5897 df-riota 6611 df-ov 6653 df-oprab 6654 df-mpt2 6655 df-rpss 6937 df-om 7066 df-1st 7168 df-2nd 7169 df-wrecs 7407 df-recs 7468 df-rdg 7506 df-seqom 7543 df-1o 7560 df-2o 7561 df-oadd 7564 df-omul 7565 df-er 7742 df-map 7859 df-en 7956 df-dom 7957 df-sdom 7958 df-fin 7959 df-wdom 8464 df-card 8765 df-fin2 9108 df-fin4 9109 df-fin3 9110 |
This theorem is referenced by: fin1a2 9237 |
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