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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 17784. 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 17788 | . . 3 ⊢ (𝜑 → (𝑁‘𝑆) = ∪ (𝑁 “ (𝒫 𝑆 ∩ Fin))) |
5 | 4 | eleq2d 2901 | . 2 ⊢ (𝜑 → (𝑌 ∈ (𝑁‘𝑆) ↔ 𝑌 ∈ ∪ (𝑁 “ (𝒫 𝑆 ∩ Fin)))) |
6 | 1 | acsmred 16930 | . . 3 ⊢ (𝜑 → 𝐴 ∈ (Moore‘𝑋)) |
7 | funmpt 6396 | . . . 4 ⊢ Fun (𝑧 ∈ 𝒫 𝑋 ↦ ∩ {𝑤 ∈ 𝐴 ∣ 𝑧 ⊆ 𝑤}) | |
8 | 2 | mrcfval 16882 | . . . . 5 ⊢ (𝐴 ∈ (Moore‘𝑋) → 𝑁 = (𝑧 ∈ 𝒫 𝑋 ↦ ∩ {𝑤 ∈ 𝐴 ∣ 𝑧 ⊆ 𝑤})) |
9 | 8 | funeqd 6380 | . . . 4 ⊢ (𝐴 ∈ (Moore‘𝑋) → (Fun 𝑁 ↔ Fun (𝑧 ∈ 𝒫 𝑋 ↦ ∩ {𝑤 ∈ 𝐴 ∣ 𝑧 ⊆ 𝑤}))) |
10 | 7, 9 | mpbiri 260 | . . 3 ⊢ (𝐴 ∈ (Moore‘𝑋) → Fun 𝑁) |
11 | eluniima 7012 | . . 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 281 | 1 ⊢ (𝜑 → (𝑌 ∈ (𝑁‘𝑆) ↔ ∃𝑥 ∈ (𝒫 𝑆 ∩ Fin)𝑌 ∈ (𝑁‘𝑥))) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 208 = wceq 1536 ∈ wcel 2113 ∃wrex 3142 {crab 3145 ∩ cin 3938 ⊆ wss 3939 𝒫 cpw 4542 ∪ cuni 4841 ∩ cint 4879 ↦ cmpt 5149 “ cima 5561 Fun wfun 6352 ‘cfv 6358 Fincfn 8512 Moorecmre 16856 mrClscmrc 16857 ACScacs 16859 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1795 ax-4 1809 ax-5 1910 ax-6 1969 ax-7 2014 ax-8 2115 ax-9 2123 ax-10 2144 ax-11 2160 ax-12 2176 ax-ext 2796 ax-sep 5206 ax-nul 5213 ax-pow 5269 ax-pr 5333 ax-un 7464 ax-cnex 10596 ax-resscn 10597 ax-1cn 10598 ax-icn 10599 ax-addcl 10600 ax-addrcl 10601 ax-mulcl 10602 ax-mulrcl 10603 ax-mulcom 10604 ax-addass 10605 ax-mulass 10606 ax-distr 10607 ax-i2m1 10608 ax-1ne0 10609 ax-1rid 10610 ax-rnegex 10611 ax-rrecex 10612 ax-cnre 10613 ax-pre-lttri 10614 ax-pre-lttrn 10615 ax-pre-ltadd 10616 ax-pre-mulgt0 10617 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3or 1084 df-3an 1085 df-tru 1539 df-ex 1780 df-nf 1784 df-sb 2069 df-mo 2621 df-eu 2653 df-clab 2803 df-cleq 2817 df-clel 2896 df-nfc 2966 df-ne 3020 df-nel 3127 df-ral 3146 df-rex 3147 df-reu 3148 df-rab 3150 df-v 3499 df-sbc 3776 df-csb 3887 df-dif 3942 df-un 3944 df-in 3946 df-ss 3955 df-pss 3957 df-nul 4295 df-if 4471 df-pw 4544 df-sn 4571 df-pr 4573 df-tp 4575 df-op 4577 df-uni 4842 df-int 4880 df-iun 4924 df-br 5070 df-opab 5132 df-mpt 5150 df-tr 5176 df-id 5463 df-eprel 5468 df-po 5477 df-so 5478 df-fr 5517 df-we 5519 df-xp 5564 df-rel 5565 df-cnv 5566 df-co 5567 df-dm 5568 df-rn 5569 df-res 5570 df-ima 5571 df-pred 6151 df-ord 6197 df-on 6198 df-lim 6199 df-suc 6200 df-iota 6317 df-fun 6360 df-fn 6361 df-f 6362 df-f1 6363 df-fo 6364 df-f1o 6365 df-fv 6366 df-riota 7117 df-ov 7162 df-oprab 7163 df-mpo 7164 df-om 7584 df-1st 7692 df-2nd 7693 df-wrecs 7950 df-recs 8011 df-rdg 8049 df-1o 8105 df-oadd 8109 df-er 8292 df-en 8513 df-dom 8514 df-sdom 8515 df-fin 8516 df-pnf 10680 df-mnf 10681 df-xr 10682 df-ltxr 10683 df-le 10684 df-sub 10875 df-neg 10876 df-nn 11642 df-2 11703 df-3 11704 df-4 11705 df-5 11706 df-6 11707 df-7 11708 df-8 11709 df-9 11710 df-n0 11901 df-z 11985 df-dec 12102 df-uz 12247 df-fz 12896 df-struct 16488 df-ndx 16489 df-slot 16490 df-base 16492 df-tset 16587 df-ple 16588 df-ocomp 16589 df-mre 16860 df-mrc 16861 df-acs 16863 df-proset 17541 df-drs 17542 df-poset 17559 df-ipo 17765 |
This theorem is referenced by: acsfiindd 17790 acsmapd 17791 |
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