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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 6869 | . . . . 5 ⊢ (𝑡 = 𝑌 → (toInc‘𝑡) = (toInc‘𝑌)) | |
| 2 | 1 | eleq1d 2849 | . . . 4 ⊢ (𝑡 = 𝑌 → ((toInc‘𝑡) ∈ Dirset ↔ (toInc‘𝑌) ∈ Dirset)) |
| 3 | unieq 4878 | . . . . . 6 ⊢ (𝑡 = 𝑌 → ∪ 𝑡 = ∪ 𝑌) | |
| 4 | 3 | fveq2d 6873 | . . . . 5 ⊢ (𝑡 = 𝑌 → (𝐹‘∪ 𝑡) = (𝐹‘∪ 𝑌)) |
| 5 | imaeq2 6047 | . . . . . 6 ⊢ (𝑡 = 𝑌 → (𝐹 “ 𝑡) = (𝐹 “ 𝑌)) | |
| 6 | 5 | unieqd 4880 | . . . . 5 ⊢ (𝑡 = 𝑌 → ∪ (𝐹 “ 𝑡) = ∪ (𝐹 “ 𝑌)) |
| 7 | 4, 6 | eqeq12d 2780 | . . . 4 ⊢ (𝑡 = 𝑌 → ((𝐹‘∪ 𝑡) = ∪ (𝐹 “ 𝑡) ↔ (𝐹‘∪ 𝑌) = ∪ (𝐹 “ 𝑌))) |
| 8 | 2, 7 | imbi12d 346 | . . 3 ⊢ (𝑡 = 𝑌 → (((toInc‘𝑡) ∈ Dirset → (𝐹‘∪ 𝑡) = ∪ (𝐹 “ 𝑡)) ↔ ((toInc‘𝑌) ∈ Dirset → (𝐹‘∪ 𝑌) = ∪ (𝐹 “ 𝑌)))) |
| 9 | isacs3lem 18576 | . . . . . 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 18578 | . . . . . 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 499 | . . . 4 ⊢ (𝐶 ∈ (ACS‘𝑋) → ∀𝑡 ∈ 𝒫 𝒫 𝑋((toInc‘𝑡) ∈ Dirset → (𝐹‘∪ 𝑡) = ∪ (𝐹 “ 𝑡))) |
| 14 | 13 | adantr 484 | . . 3 ⊢ ((𝐶 ∈ (ACS‘𝑋) ∧ 𝑌 ⊆ 𝒫 𝑋) → ∀𝑡 ∈ 𝒫 𝒫 𝑋((toInc‘𝑡) ∈ Dirset → (𝐹‘∪ 𝑡) = ∪ (𝐹 “ 𝑡))) |
| 15 | elfvdm 6903 | . . . . 5 ⊢ (𝐶 ∈ (ACS‘𝑋) → 𝑋 ∈ dom ACS) | |
| 16 | pwexg 5337 | . . . . 5 ⊢ (𝑋 ∈ dom ACS → 𝒫 𝑋 ∈ V) | |
| 17 | elpw2g 5291 | . . . . 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 481 | . . 3 ⊢ ((𝐶 ∈ (ACS‘𝑋) ∧ 𝑌 ⊆ 𝒫 𝑋) → 𝑌 ∈ 𝒫 𝒫 𝑋) |
| 20 | 8, 14, 19 | rspcdva 3584 | . 2 ⊢ ((𝐶 ∈ (ACS‘𝑋) ∧ 𝑌 ⊆ 𝒫 𝑋) → ((toInc‘𝑌) ∈ Dirset → (𝐹‘∪ 𝑌) = ∪ (𝐹 “ 𝑌))) |
| 21 | 20 | 3impia 1131 | 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 208 ∧ wa 399 ∧ w3a 1099 = wceq 1562 ∈ wcel 2144 ∀wral 3078 Vcvv 3456 ⊆ wss 3906 𝒫 cpw 4557 ∪ cuni 4867 dom cdm 5649 “ cima 5652 ‘cfv 6523 Moorecmre 17612 mrClscmrc 17613 ACScacs 17615 Dirsetcdrs 18327 toInccipo 18561 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1817 ax-4 1831 ax-5 1932 ax-6 1989 ax-7 2030 ax-8 2146 ax-9 2154 ax-10 2177 ax-11 2193 ax-12 2214 ax-ext 2736 ax-sep 5248 ax-nul 5258 ax-pow 5324 ax-pr 5392 ax-un 7720 ax-cnex 11131 ax-resscn 11132 ax-1cn 11133 ax-icn 11134 ax-addcl 11135 ax-addrcl 11136 ax-mulcl 11137 ax-mulrcl 11138 ax-mulcom 11139 ax-addass 11140 ax-mulass 11141 ax-distr 11142 ax-i2m1 11143 ax-1ne0 11144 ax-1rid 11145 ax-rnegex 11146 ax-rrecex 11147 ax-cnre 11148 ax-pre-lttri 11149 ax-pre-lttrn 11150 ax-pre-ltadd 11151 ax-pre-mulgt0 11152 |
| This theorem depends on definitions: df-bi 209 df-an 400 df-or 859 df-3or 1100 df-3an 1101 df-tru 1565 df-fal 1575 df-ex 1802 df-nf 1806 df-sb 2093 df-mo 2568 df-eu 2598 df-clab 2743 df-cleq 2756 df-clel 2839 df-nfc 2913 df-ne 2960 df-nel 3064 df-ral 3079 df-rex 3089 df-reu 3370 df-rab 3417 df-v 3458 df-sbc 3747 df-csb 3855 df-dif 3909 df-un 3911 df-in 3913 df-ss 3923 df-pss 3926 df-nul 4288 df-if 4483 df-pw 4559 df-sn 4585 df-pr 4587 df-op 4591 df-uni 4868 df-int 4908 df-iun 4953 df-br 5103 df-opab 5165 df-mpt 5184 df-tr 5210 df-id 5544 df-eprel 5549 df-po 5557 df-so 5558 df-fr 5602 df-we 5604 df-xp 5655 df-rel 5656 df-cnv 5657 df-co 5658 df-dm 5659 df-rn 5660 df-res 5661 df-ima 5662 df-pred 6290 df-ord 6351 df-on 6352 df-lim 6353 df-suc 6354 df-iota 6479 df-fun 6525 df-fn 6526 df-f 6527 df-f1 6528 df-fo 6529 df-f1o 6530 df-fv 6531 df-riota 7355 df-ov 7401 df-oprab 7402 df-mpo 7403 df-om 7849 df-1st 7972 df-2nd 7973 df-frecs 8264 df-wrecs 8295 df-recs 8344 df-rdg 8383 df-1o 8439 df-er 8680 df-en 8930 df-dom 8931 df-sdom 8932 df-fin 8933 df-pnf 11220 df-mnf 11221 df-xr 11222 df-ltxr 11223 df-le 11224 df-sub 11418 df-neg 11419 df-nn 12213 df-2 12282 df-3 12283 df-4 12284 df-5 12285 df-6 12286 df-7 12287 df-8 12288 df-9 12289 df-n0 12484 df-z 12571 df-dec 12691 df-uz 12842 df-fz 13515 df-struct 17185 df-slot 17220 df-ndx 17232 df-base 17248 df-tset 17307 df-ple 17308 df-ocomp 17309 df-mre 17616 df-mrc 17617 df-acs 17619 df-proset 18328 df-drs 18329 df-poset 18347 df-ipo 18562 |
| This theorem is referenced by: (None) |
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