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Mirrors > Home > MPE Home > Th. List > acsficl2d | Structured version Visualization version GIF version |
Description: In an algebraic closure system, an element is in the closure of a set if and only if it is in the closure of a finite subset. Alternate form of acsficl 18265. Deduction form. (Contributed by David Moews, 1-May-2017.) |
Ref | Expression |
---|---|
acsficld.1 | ⊢ (𝜑 → 𝐴 ∈ (ACS‘𝑋)) |
acsficld.2 | ⊢ 𝑁 = (mrCls‘𝐴) |
acsficld.3 | ⊢ (𝜑 → 𝑆 ⊆ 𝑋) |
Ref | Expression |
---|---|
acsficl2d | ⊢ (𝜑 → (𝑌 ∈ (𝑁‘𝑆) ↔ ∃𝑥 ∈ (𝒫 𝑆 ∩ Fin)𝑌 ∈ (𝑁‘𝑥))) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | acsficld.1 | . . . 4 ⊢ (𝜑 → 𝐴 ∈ (ACS‘𝑋)) | |
2 | acsficld.2 | . . . 4 ⊢ 𝑁 = (mrCls‘𝐴) | |
3 | acsficld.3 | . . . 4 ⊢ (𝜑 → 𝑆 ⊆ 𝑋) | |
4 | 1, 2, 3 | acsficld 18269 | . . 3 ⊢ (𝜑 → (𝑁‘𝑆) = ∪ (𝑁 “ (𝒫 𝑆 ∩ Fin))) |
5 | 4 | eleq2d 2824 | . 2 ⊢ (𝜑 → (𝑌 ∈ (𝑁‘𝑆) ↔ 𝑌 ∈ ∪ (𝑁 “ (𝒫 𝑆 ∩ Fin)))) |
6 | 1 | acsmred 17365 | . . 3 ⊢ (𝜑 → 𝐴 ∈ (Moore‘𝑋)) |
7 | funmpt 6472 | . . . 4 ⊢ Fun (𝑧 ∈ 𝒫 𝑋 ↦ ∩ {𝑤 ∈ 𝐴 ∣ 𝑧 ⊆ 𝑤}) | |
8 | 2 | mrcfval 17317 | . . . . 5 ⊢ (𝐴 ∈ (Moore‘𝑋) → 𝑁 = (𝑧 ∈ 𝒫 𝑋 ↦ ∩ {𝑤 ∈ 𝐴 ∣ 𝑧 ⊆ 𝑤})) |
9 | 8 | funeqd 6456 | . . . 4 ⊢ (𝐴 ∈ (Moore‘𝑋) → (Fun 𝑁 ↔ Fun (𝑧 ∈ 𝒫 𝑋 ↦ ∩ {𝑤 ∈ 𝐴 ∣ 𝑧 ⊆ 𝑤}))) |
10 | 7, 9 | mpbiri 257 | . . 3 ⊢ (𝐴 ∈ (Moore‘𝑋) → Fun 𝑁) |
11 | eluniima 7123 | . . 3 ⊢ (Fun 𝑁 → (𝑌 ∈ ∪ (𝑁 “ (𝒫 𝑆 ∩ Fin)) ↔ ∃𝑥 ∈ (𝒫 𝑆 ∩ Fin)𝑌 ∈ (𝑁‘𝑥))) | |
12 | 6, 10, 11 | 3syl 18 | . 2 ⊢ (𝜑 → (𝑌 ∈ ∪ (𝑁 “ (𝒫 𝑆 ∩ Fin)) ↔ ∃𝑥 ∈ (𝒫 𝑆 ∩ Fin)𝑌 ∈ (𝑁‘𝑥))) |
13 | 5, 12 | bitrd 278 | 1 ⊢ (𝜑 → (𝑌 ∈ (𝑁‘𝑆) ↔ ∃𝑥 ∈ (𝒫 𝑆 ∩ Fin)𝑌 ∈ (𝑁‘𝑥))) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 205 = wceq 1539 ∈ wcel 2106 ∃wrex 3065 {crab 3068 ∩ cin 3886 ⊆ wss 3887 𝒫 cpw 4533 ∪ cuni 4839 ∩ cint 4879 ↦ cmpt 5157 “ cima 5592 Fun wfun 6427 ‘cfv 6433 Fincfn 8733 Moorecmre 17291 mrClscmrc 17292 ACScacs 17294 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1798 ax-4 1812 ax-5 1913 ax-6 1971 ax-7 2011 ax-8 2108 ax-9 2116 ax-10 2137 ax-11 2154 ax-12 2171 ax-ext 2709 ax-sep 5223 ax-nul 5230 ax-pow 5288 ax-pr 5352 ax-un 7588 ax-cnex 10927 ax-resscn 10928 ax-1cn 10929 ax-icn 10930 ax-addcl 10931 ax-addrcl 10932 ax-mulcl 10933 ax-mulrcl 10934 ax-mulcom 10935 ax-addass 10936 ax-mulass 10937 ax-distr 10938 ax-i2m1 10939 ax-1ne0 10940 ax-1rid 10941 ax-rnegex 10942 ax-rrecex 10943 ax-cnre 10944 ax-pre-lttri 10945 ax-pre-lttrn 10946 ax-pre-ltadd 10947 ax-pre-mulgt0 10948 |
This theorem depends on definitions: df-bi 206 df-an 397 df-or 845 df-3or 1087 df-3an 1088 df-tru 1542 df-fal 1552 df-ex 1783 df-nf 1787 df-sb 2068 df-mo 2540 df-eu 2569 df-clab 2716 df-cleq 2730 df-clel 2816 df-nfc 2889 df-ne 2944 df-nel 3050 df-ral 3069 df-rex 3070 df-reu 3072 df-rab 3073 df-v 3434 df-sbc 3717 df-csb 3833 df-dif 3890 df-un 3892 df-in 3894 df-ss 3904 df-pss 3906 df-nul 4257 df-if 4460 df-pw 4535 df-sn 4562 df-pr 4564 df-op 4568 df-uni 4840 df-int 4880 df-iun 4926 df-br 5075 df-opab 5137 df-mpt 5158 df-tr 5192 df-id 5489 df-eprel 5495 df-po 5503 df-so 5504 df-fr 5544 df-we 5546 df-xp 5595 df-rel 5596 df-cnv 5597 df-co 5598 df-dm 5599 df-rn 5600 df-res 5601 df-ima 5602 df-pred 6202 df-ord 6269 df-on 6270 df-lim 6271 df-suc 6272 df-iota 6391 df-fun 6435 df-fn 6436 df-f 6437 df-f1 6438 df-fo 6439 df-f1o 6440 df-fv 6441 df-riota 7232 df-ov 7278 df-oprab 7279 df-mpo 7280 df-om 7713 df-1st 7831 df-2nd 7832 df-frecs 8097 df-wrecs 8128 df-recs 8202 df-rdg 8241 df-1o 8297 df-er 8498 df-en 8734 df-dom 8735 df-sdom 8736 df-fin 8737 df-pnf 11011 df-mnf 11012 df-xr 11013 df-ltxr 11014 df-le 11015 df-sub 11207 df-neg 11208 df-nn 11974 df-2 12036 df-3 12037 df-4 12038 df-5 12039 df-6 12040 df-7 12041 df-8 12042 df-9 12043 df-n0 12234 df-z 12320 df-dec 12438 df-uz 12583 df-fz 13240 df-struct 16848 df-slot 16883 df-ndx 16895 df-base 16913 df-tset 16981 df-ple 16982 df-ocomp 16983 df-mre 17295 df-mrc 17296 df-acs 17298 df-proset 18013 df-drs 18014 df-poset 18031 df-ipo 18246 |
This theorem is referenced by: acsfiindd 18271 acsmapd 18272 |
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