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Mirrors > Home > MPE Home > Th. List > acsinfd | Structured version Visualization version GIF version |
Description: In an algebraic closure system, if 𝑆 and 𝑇 have the same closure and 𝑆 is infinite independent, then 𝑇 is infinite. This follows from applying unirnffid 9041 to the map given in acsmap2d 18188. See Section II.5 in [Cohn] p. 81 to 82. (Contributed by David Moews, 1-May-2017.) |
Ref | Expression |
---|---|
acsmap2d.1 | ⊢ (𝜑 → 𝐴 ∈ (ACS‘𝑋)) |
acsmap2d.2 | ⊢ 𝑁 = (mrCls‘𝐴) |
acsmap2d.3 | ⊢ 𝐼 = (mrInd‘𝐴) |
acsmap2d.4 | ⊢ (𝜑 → 𝑆 ∈ 𝐼) |
acsmap2d.5 | ⊢ (𝜑 → 𝑇 ⊆ 𝑋) |
acsmap2d.6 | ⊢ (𝜑 → (𝑁‘𝑆) = (𝑁‘𝑇)) |
acsinfd.7 | ⊢ (𝜑 → ¬ 𝑆 ∈ Fin) |
Ref | Expression |
---|---|
acsinfd | ⊢ (𝜑 → ¬ 𝑇 ∈ Fin) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | acsmap2d.1 | . . 3 ⊢ (𝜑 → 𝐴 ∈ (ACS‘𝑋)) | |
2 | acsmap2d.2 | . . 3 ⊢ 𝑁 = (mrCls‘𝐴) | |
3 | acsmap2d.3 | . . 3 ⊢ 𝐼 = (mrInd‘𝐴) | |
4 | acsmap2d.4 | . . 3 ⊢ (𝜑 → 𝑆 ∈ 𝐼) | |
5 | acsmap2d.5 | . . 3 ⊢ (𝜑 → 𝑇 ⊆ 𝑋) | |
6 | acsmap2d.6 | . . 3 ⊢ (𝜑 → (𝑁‘𝑆) = (𝑁‘𝑇)) | |
7 | 1, 2, 3, 4, 5, 6 | acsmap2d 18188 | . 2 ⊢ (𝜑 → ∃𝑓(𝑓:𝑇⟶(𝒫 𝑆 ∩ Fin) ∧ 𝑆 = ∪ ran 𝑓)) |
8 | simplrr 774 | . . . 4 ⊢ (((𝜑 ∧ (𝑓:𝑇⟶(𝒫 𝑆 ∩ Fin) ∧ 𝑆 = ∪ ran 𝑓)) ∧ 𝑇 ∈ Fin) → 𝑆 = ∪ ran 𝑓) | |
9 | simplrl 773 | . . . . . 6 ⊢ (((𝜑 ∧ (𝑓:𝑇⟶(𝒫 𝑆 ∩ Fin) ∧ 𝑆 = ∪ ran 𝑓)) ∧ 𝑇 ∈ Fin) → 𝑓:𝑇⟶(𝒫 𝑆 ∩ Fin)) | |
10 | inss2 4160 | . . . . . 6 ⊢ (𝒫 𝑆 ∩ Fin) ⊆ Fin | |
11 | fss 6601 | . . . . . 6 ⊢ ((𝑓:𝑇⟶(𝒫 𝑆 ∩ Fin) ∧ (𝒫 𝑆 ∩ Fin) ⊆ Fin) → 𝑓:𝑇⟶Fin) | |
12 | 9, 10, 11 | sylancl 585 | . . . . 5 ⊢ (((𝜑 ∧ (𝑓:𝑇⟶(𝒫 𝑆 ∩ Fin) ∧ 𝑆 = ∪ ran 𝑓)) ∧ 𝑇 ∈ Fin) → 𝑓:𝑇⟶Fin) |
13 | simpr 484 | . . . . 5 ⊢ (((𝜑 ∧ (𝑓:𝑇⟶(𝒫 𝑆 ∩ Fin) ∧ 𝑆 = ∪ ran 𝑓)) ∧ 𝑇 ∈ Fin) → 𝑇 ∈ Fin) | |
14 | 12, 13 | unirnffid 9041 | . . . 4 ⊢ (((𝜑 ∧ (𝑓:𝑇⟶(𝒫 𝑆 ∩ Fin) ∧ 𝑆 = ∪ ran 𝑓)) ∧ 𝑇 ∈ Fin) → ∪ ran 𝑓 ∈ Fin) |
15 | 8, 14 | eqeltrd 2839 | . . 3 ⊢ (((𝜑 ∧ (𝑓:𝑇⟶(𝒫 𝑆 ∩ Fin) ∧ 𝑆 = ∪ ran 𝑓)) ∧ 𝑇 ∈ Fin) → 𝑆 ∈ Fin) |
16 | acsinfd.7 | . . . 4 ⊢ (𝜑 → ¬ 𝑆 ∈ Fin) | |
17 | 16 | ad2antrr 722 | . . 3 ⊢ (((𝜑 ∧ (𝑓:𝑇⟶(𝒫 𝑆 ∩ Fin) ∧ 𝑆 = ∪ ran 𝑓)) ∧ 𝑇 ∈ Fin) → ¬ 𝑆 ∈ Fin) |
18 | 15, 17 | pm2.65da 813 | . 2 ⊢ ((𝜑 ∧ (𝑓:𝑇⟶(𝒫 𝑆 ∩ Fin) ∧ 𝑆 = ∪ ran 𝑓)) → ¬ 𝑇 ∈ Fin) |
19 | 7, 18 | exlimddv 1939 | 1 ⊢ (𝜑 → ¬ 𝑇 ∈ Fin) |
Colors of variables: wff setvar class |
Syntax hints: ¬ wn 3 → wi 4 ∧ wa 395 = wceq 1539 ∈ wcel 2108 ∩ cin 3882 ⊆ wss 3883 𝒫 cpw 4530 ∪ cuni 4836 ran crn 5581 ⟶wf 6414 ‘cfv 6418 Fincfn 8691 mrClscmrc 17209 mrIndcmri 17210 ACScacs 17211 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1799 ax-4 1813 ax-5 1914 ax-6 1972 ax-7 2012 ax-8 2110 ax-9 2118 ax-10 2139 ax-11 2156 ax-12 2173 ax-ext 2709 ax-rep 5205 ax-sep 5218 ax-nul 5225 ax-pow 5283 ax-pr 5347 ax-un 7566 ax-reg 9281 ax-inf2 9329 ax-ac2 10150 ax-cnex 10858 ax-resscn 10859 ax-1cn 10860 ax-icn 10861 ax-addcl 10862 ax-addrcl 10863 ax-mulcl 10864 ax-mulrcl 10865 ax-mulcom 10866 ax-addass 10867 ax-mulass 10868 ax-distr 10869 ax-i2m1 10870 ax-1ne0 10871 ax-1rid 10872 ax-rnegex 10873 ax-rrecex 10874 ax-cnre 10875 ax-pre-lttri 10876 ax-pre-lttrn 10877 ax-pre-ltadd 10878 ax-pre-mulgt0 10879 |
This theorem depends on definitions: df-bi 206 df-an 396 df-or 844 df-3or 1086 df-3an 1087 df-tru 1542 df-fal 1552 df-ex 1784 df-nf 1788 df-sb 2069 df-mo 2540 df-eu 2569 df-clab 2716 df-cleq 2730 df-clel 2817 df-nfc 2888 df-ne 2943 df-nel 3049 df-ral 3068 df-rex 3069 df-reu 3070 df-rmo 3071 df-rab 3072 df-v 3424 df-sbc 3712 df-csb 3829 df-dif 3886 df-un 3888 df-in 3890 df-ss 3900 df-pss 3902 df-nul 4254 df-if 4457 df-pw 4532 df-sn 4559 df-pr 4561 df-tp 4563 df-op 4565 df-uni 4837 df-int 4877 df-iun 4923 df-iin 4924 df-br 5071 df-opab 5133 df-mpt 5154 df-tr 5188 df-id 5480 df-eprel 5486 df-po 5494 df-so 5495 df-fr 5535 df-se 5536 df-we 5537 df-xp 5586 df-rel 5587 df-cnv 5588 df-co 5589 df-dm 5590 df-rn 5591 df-res 5592 df-ima 5593 df-pred 6191 df-ord 6254 df-on 6255 df-lim 6256 df-suc 6257 df-iota 6376 df-fun 6420 df-fn 6421 df-f 6422 df-f1 6423 df-fo 6424 df-f1o 6425 df-fv 6426 df-isom 6427 df-riota 7212 df-ov 7258 df-oprab 7259 df-mpo 7260 df-om 7688 df-1st 7804 df-2nd 7805 df-frecs 8068 df-wrecs 8099 df-recs 8173 df-rdg 8212 df-1o 8267 df-er 8456 df-en 8692 df-dom 8693 df-sdom 8694 df-fin 8695 df-r1 9453 df-rank 9454 df-card 9628 df-ac 9803 df-pnf 10942 df-mnf 10943 df-xr 10944 df-ltxr 10945 df-le 10946 df-sub 11137 df-neg 11138 df-nn 11904 df-2 11966 df-3 11967 df-4 11968 df-5 11969 df-6 11970 df-7 11971 df-8 11972 df-9 11973 df-n0 12164 df-z 12250 df-dec 12367 df-uz 12512 df-fz 13169 df-struct 16776 df-slot 16811 df-ndx 16823 df-base 16841 df-tset 16907 df-ple 16908 df-ocomp 16909 df-mre 17212 df-mrc 17213 df-mri 17214 df-acs 17215 df-proset 17928 df-drs 17929 df-poset 17946 df-ipo 18161 |
This theorem is referenced by: acsdomd 18190 acsinfdimd 18191 |
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