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| Mirrors > Home > MPE Home > Th. List > acsdrscl | Structured version Visualization version GIF version | ||
| Description: In an algebraic closure system, closure commutes with directed unions. (Contributed by Stefan O'Rear, 2-Apr-2015.) |
| Ref | Expression |
|---|---|
| acsdrscl.f | ⊢ 𝐹 = (mrCls‘𝐶) |
| Ref | Expression |
|---|---|
| acsdrscl | ⊢ ((𝐶 ∈ (ACS‘𝑋) ∧ 𝑌 ⊆ 𝒫 𝑋 ∧ (toInc‘𝑌) ∈ Dirset) → (𝐹‘∪ 𝑌) = ∪ (𝐹 “ 𝑌)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | fveq2 6841 | . . . . 5 ⊢ (𝑡 = 𝑌 → (toInc‘𝑡) = (toInc‘𝑌)) | |
| 2 | 1 | eleq1d 2822 | . . . 4 ⊢ (𝑡 = 𝑌 → ((toInc‘𝑡) ∈ Dirset ↔ (toInc‘𝑌) ∈ Dirset)) |
| 3 | unieq 4862 | . . . . . 6 ⊢ (𝑡 = 𝑌 → ∪ 𝑡 = ∪ 𝑌) | |
| 4 | 3 | fveq2d 6845 | . . . . 5 ⊢ (𝑡 = 𝑌 → (𝐹‘∪ 𝑡) = (𝐹‘∪ 𝑌)) |
| 5 | imaeq2 6022 | . . . . . 6 ⊢ (𝑡 = 𝑌 → (𝐹 “ 𝑡) = (𝐹 “ 𝑌)) | |
| 6 | 5 | unieqd 4864 | . . . . 5 ⊢ (𝑡 = 𝑌 → ∪ (𝐹 “ 𝑡) = ∪ (𝐹 “ 𝑌)) |
| 7 | 4, 6 | eqeq12d 2753 | . . . 4 ⊢ (𝑡 = 𝑌 → ((𝐹‘∪ 𝑡) = ∪ (𝐹 “ 𝑡) ↔ (𝐹‘∪ 𝑌) = ∪ (𝐹 “ 𝑌))) |
| 8 | 2, 7 | imbi12d 344 | . . 3 ⊢ (𝑡 = 𝑌 → (((toInc‘𝑡) ∈ Dirset → (𝐹‘∪ 𝑡) = ∪ (𝐹 “ 𝑡)) ↔ ((toInc‘𝑌) ∈ Dirset → (𝐹‘∪ 𝑌) = ∪ (𝐹 “ 𝑌)))) |
| 9 | isacs3lem 18508 | . . . . . 6 ⊢ (𝐶 ∈ (ACS‘𝑋) → (𝐶 ∈ (Moore‘𝑋) ∧ ∀𝑠 ∈ 𝒫 𝐶((toInc‘𝑠) ∈ Dirset → ∪ 𝑠 ∈ 𝐶))) | |
| 10 | acsdrscl.f | . . . . . . 7 ⊢ 𝐹 = (mrCls‘𝐶) | |
| 11 | 10 | isacs4lem 18510 | . . . . . 6 ⊢ ((𝐶 ∈ (Moore‘𝑋) ∧ ∀𝑠 ∈ 𝒫 𝐶((toInc‘𝑠) ∈ Dirset → ∪ 𝑠 ∈ 𝐶)) → (𝐶 ∈ (Moore‘𝑋) ∧ ∀𝑡 ∈ 𝒫 𝒫 𝑋((toInc‘𝑡) ∈ Dirset → (𝐹‘∪ 𝑡) = ∪ (𝐹 “ 𝑡)))) |
| 12 | 9, 11 | syl 17 | . . . . 5 ⊢ (𝐶 ∈ (ACS‘𝑋) → (𝐶 ∈ (Moore‘𝑋) ∧ ∀𝑡 ∈ 𝒫 𝒫 𝑋((toInc‘𝑡) ∈ Dirset → (𝐹‘∪ 𝑡) = ∪ (𝐹 “ 𝑡)))) |
| 13 | 12 | simprd 495 | . . . 4 ⊢ (𝐶 ∈ (ACS‘𝑋) → ∀𝑡 ∈ 𝒫 𝒫 𝑋((toInc‘𝑡) ∈ Dirset → (𝐹‘∪ 𝑡) = ∪ (𝐹 “ 𝑡))) |
| 14 | 13 | adantr 480 | . . 3 ⊢ ((𝐶 ∈ (ACS‘𝑋) ∧ 𝑌 ⊆ 𝒫 𝑋) → ∀𝑡 ∈ 𝒫 𝒫 𝑋((toInc‘𝑡) ∈ Dirset → (𝐹‘∪ 𝑡) = ∪ (𝐹 “ 𝑡))) |
| 15 | elfvdm 6875 | . . . . 5 ⊢ (𝐶 ∈ (ACS‘𝑋) → 𝑋 ∈ dom ACS) | |
| 16 | pwexg 5321 | . . . . 5 ⊢ (𝑋 ∈ dom ACS → 𝒫 𝑋 ∈ V) | |
| 17 | elpw2g 5275 | . . . . 5 ⊢ (𝒫 𝑋 ∈ V → (𝑌 ∈ 𝒫 𝒫 𝑋 ↔ 𝑌 ⊆ 𝒫 𝑋)) | |
| 18 | 15, 16, 17 | 3syl 18 | . . . 4 ⊢ (𝐶 ∈ (ACS‘𝑋) → (𝑌 ∈ 𝒫 𝒫 𝑋 ↔ 𝑌 ⊆ 𝒫 𝑋)) |
| 19 | 18 | biimpar 477 | . . 3 ⊢ ((𝐶 ∈ (ACS‘𝑋) ∧ 𝑌 ⊆ 𝒫 𝑋) → 𝑌 ∈ 𝒫 𝒫 𝑋) |
| 20 | 8, 14, 19 | rspcdva 3566 | . 2 ⊢ ((𝐶 ∈ (ACS‘𝑋) ∧ 𝑌 ⊆ 𝒫 𝑋) → ((toInc‘𝑌) ∈ Dirset → (𝐹‘∪ 𝑌) = ∪ (𝐹 “ 𝑌))) |
| 21 | 20 | 3impia 1118 | 1 ⊢ ((𝐶 ∈ (ACS‘𝑋) ∧ 𝑌 ⊆ 𝒫 𝑋 ∧ (toInc‘𝑌) ∈ Dirset) → (𝐹‘∪ 𝑌) = ∪ (𝐹 “ 𝑌)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 206 ∧ wa 395 ∧ w3a 1087 = wceq 1542 ∈ wcel 2114 ∀wral 3052 Vcvv 3430 ⊆ wss 3890 𝒫 cpw 4542 ∪ cuni 4851 dom cdm 5631 “ cima 5634 ‘cfv 6499 Moorecmre 17544 mrClscmrc 17545 ACScacs 17547 Dirsetcdrs 18259 toInccipo 18493 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2185 ax-ext 2709 ax-sep 5232 ax-nul 5242 ax-pow 5308 ax-pr 5376 ax-un 7689 ax-cnex 11094 ax-resscn 11095 ax-1cn 11096 ax-icn 11097 ax-addcl 11098 ax-addrcl 11099 ax-mulcl 11100 ax-mulrcl 11101 ax-mulcom 11102 ax-addass 11103 ax-mulass 11104 ax-distr 11105 ax-i2m1 11106 ax-1ne0 11107 ax-1rid 11108 ax-rnegex 11109 ax-rrecex 11110 ax-cnre 11111 ax-pre-lttri 11112 ax-pre-lttrn 11113 ax-pre-ltadd 11114 ax-pre-mulgt0 11115 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3or 1088 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2540 df-eu 2570 df-clab 2716 df-cleq 2729 df-clel 2812 df-nfc 2886 df-ne 2934 df-nel 3038 df-ral 3053 df-rex 3063 df-reu 3344 df-rab 3391 df-v 3432 df-sbc 3730 df-csb 3839 df-dif 3893 df-un 3895 df-in 3897 df-ss 3907 df-pss 3910 df-nul 4275 df-if 4468 df-pw 4544 df-sn 4569 df-pr 4571 df-op 4575 df-uni 4852 df-int 4891 df-iun 4936 df-br 5087 df-opab 5149 df-mpt 5168 df-tr 5194 df-id 5526 df-eprel 5531 df-po 5539 df-so 5540 df-fr 5584 df-we 5586 df-xp 5637 df-rel 5638 df-cnv 5639 df-co 5640 df-dm 5641 df-rn 5642 df-res 5643 df-ima 5644 df-pred 6266 df-ord 6327 df-on 6328 df-lim 6329 df-suc 6330 df-iota 6455 df-fun 6501 df-fn 6502 df-f 6503 df-f1 6504 df-fo 6505 df-f1o 6506 df-fv 6507 df-riota 7324 df-ov 7370 df-oprab 7371 df-mpo 7372 df-om 7818 df-1st 7942 df-2nd 7943 df-frecs 8231 df-wrecs 8262 df-recs 8311 df-rdg 8349 df-1o 8405 df-er 8643 df-en 8894 df-dom 8895 df-sdom 8896 df-fin 8897 df-pnf 11181 df-mnf 11182 df-xr 11183 df-ltxr 11184 df-le 11185 df-sub 11379 df-neg 11380 df-nn 12175 df-2 12244 df-3 12245 df-4 12246 df-5 12247 df-6 12248 df-7 12249 df-8 12250 df-9 12251 df-n0 12438 df-z 12525 df-dec 12645 df-uz 12789 df-fz 13462 df-struct 17117 df-slot 17152 df-ndx 17164 df-base 17180 df-tset 17239 df-ple 17240 df-ocomp 17241 df-mre 17548 df-mrc 17549 df-acs 17551 df-proset 18260 df-drs 18261 df-poset 18279 df-ipo 18494 |
| This theorem is referenced by: (None) |
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