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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 6882 | . . . . 5 ⊢ (𝑡 = 𝑌 → (toInc‘𝑡) = (toInc‘𝑌)) | |
| 2 | 1 | eleq1d 2854 | . . . 4 ⊢ (𝑡 = 𝑌 → ((toInc‘𝑡) ∈ Dirset ↔ (toInc‘𝑌) ∈ Dirset)) |
| 3 | unieq 4885 | . . . . . 6 ⊢ (𝑡 = 𝑌 → ∪ 𝑡 = ∪ 𝑌) | |
| 4 | 3 | fveq2d 6886 | . . . . 5 ⊢ (𝑡 = 𝑌 → (𝐹‘∪ 𝑡) = (𝐹‘∪ 𝑌)) |
| 5 | imaeq2 6059 | . . . . . 6 ⊢ (𝑡 = 𝑌 → (𝐹 “ 𝑡) = (𝐹 “ 𝑌)) | |
| 6 | 5 | unieqd 4887 | . . . . 5 ⊢ (𝑡 = 𝑌 → ∪ (𝐹 “ 𝑡) = ∪ (𝐹 “ 𝑌)) |
| 7 | 4, 6 | eqeq12d 2785 | . . . 4 ⊢ (𝑡 = 𝑌 → ((𝐹‘∪ 𝑡) = ∪ (𝐹 “ 𝑡) ↔ (𝐹‘∪ 𝑌) = ∪ (𝐹 “ 𝑌))) |
| 8 | 2, 7 | imbi12d 347 | . . 3 ⊢ (𝑡 = 𝑌 → (((toInc‘𝑡) ∈ Dirset → (𝐹‘∪ 𝑡) = ∪ (𝐹 “ 𝑡)) ↔ ((toInc‘𝑌) ∈ Dirset → (𝐹‘∪ 𝑌) = ∪ (𝐹 “ 𝑌)))) |
| 9 | isacs3lem 18598 | . . . . . 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 18600 | . . . . . 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 18 | . . . . 5 ⊢ (𝐶 ∈ (ACS‘𝑋) → (𝐶 ∈ (Moore‘𝑋) ∧ ∀𝑡 ∈ 𝒫 𝒫 𝑋((toInc‘𝑡) ∈ Dirset → (𝐹‘∪ 𝑡) = ∪ (𝐹 “ 𝑡)))) |
| 13 | 12 | simprd 500 | . . . 4 ⊢ (𝐶 ∈ (ACS‘𝑋) → ∀𝑡 ∈ 𝒫 𝒫 𝑋((toInc‘𝑡) ∈ Dirset → (𝐹‘∪ 𝑡) = ∪ (𝐹 “ 𝑡))) |
| 14 | 13 | adantr 485 | . . 3 ⊢ ((𝐶 ∈ (ACS‘𝑋) ∧ 𝑌 ⊆ 𝒫 𝑋) → ∀𝑡 ∈ 𝒫 𝒫 𝑋((toInc‘𝑡) ∈ Dirset → (𝐹‘∪ 𝑡) = ∪ (𝐹 “ 𝑡))) |
| 15 | elfvdm 6916 | . . . . 5 ⊢ (𝐶 ∈ (ACS‘𝑋) → 𝑋 ∈ dom ACS) | |
| 16 | pwexg 5350 | . . . . 5 ⊢ (𝑋 ∈ dom ACS → 𝒫 𝑋 ∈ V) | |
| 17 | elpw2g 5304 | . . . . 5 ⊢ (𝒫 𝑋 ∈ V → (𝑌 ∈ 𝒫 𝒫 𝑋 ↔ 𝑌 ⊆ 𝒫 𝑋)) | |
| 18 | 15, 16, 17 | 3syl 19 | . . . 4 ⊢ (𝐶 ∈ (ACS‘𝑋) → (𝑌 ∈ 𝒫 𝒫 𝑋 ↔ 𝑌 ⊆ 𝒫 𝑋)) |
| 19 | 18 | biimpar 482 | . . 3 ⊢ ((𝐶 ∈ (ACS‘𝑋) ∧ 𝑌 ⊆ 𝒫 𝑋) → 𝑌 ∈ 𝒫 𝒫 𝑋) |
| 20 | 8, 14, 19 | rspcdva 3589 | . 2 ⊢ ((𝐶 ∈ (ACS‘𝑋) ∧ 𝑌 ⊆ 𝒫 𝑋) → ((toInc‘𝑌) ∈ Dirset → (𝐹‘∪ 𝑌) = ∪ (𝐹 “ 𝑌))) |
| 21 | 20 | 3impia 1133 | 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 209 ∧ wa 400 ∧ w3a 1101 = wceq 1567 ∈ wcel 2149 ∀wral 3085 Vcvv 3461 ⊆ wss 3911 𝒫 cpw 4565 ∪ cuni 4874 dom cdm 5662 “ cima 5665 ‘cfv 6537 Moorecmre 17634 mrClscmrc 17635 ACScacs 17637 Dirsetcdrs 18349 toInccipo 18583 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1822 ax-4 1836 ax-5 1937 ax-6 1994 ax-7 2035 ax-8 2151 ax-9 2159 ax-10 2182 ax-11 2198 ax-12 2219 ax-ext 2741 ax-sep 5259 ax-nul 5271 ax-pow 5337 ax-pr 5405 ax-un 7733 ax-cnex 11156 ax-resscn 11157 ax-1cn 11158 ax-icn 11159 ax-addcl 11160 ax-addrcl 11161 ax-mulcl 11162 ax-mulrcl 11163 ax-mulcom 11164 ax-addass 11165 ax-mulass 11166 ax-distr 11167 ax-i2m1 11168 ax-1ne0 11169 ax-1rid 11170 ax-rnegex 11171 ax-rrecex 11172 ax-cnre 11173 ax-pre-lttri 11174 ax-pre-lttrn 11175 ax-pre-ltadd 11176 ax-pre-mulgt0 11177 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3or 1102 df-3an 1103 df-tru 1570 df-fal 1580 df-ex 1807 df-nf 1811 df-sb 2098 df-mo 2573 df-eu 2603 df-clab 2748 df-cleq 2761 df-clel 2844 df-nfc 2918 df-ne 2965 df-nel 3071 df-ral 3086 df-rex 3096 df-reu 3376 df-rab 3423 df-v 3463 df-sbc 3752 df-csb 3860 df-dif 3914 df-un 3916 df-in 3918 df-ss 3928 df-pss 3931 df-nul 4293 df-if 4491 df-pw 4567 df-sn 4593 df-pr 4595 df-op 4599 df-uni 4875 df-int 4915 df-iun 4960 df-br 5112 df-opab 5176 df-mpt 5195 df-tr 5221 df-id 5557 df-eprel 5562 df-po 5570 df-so 5571 df-fr 5615 df-we 5617 df-xp 5668 df-rel 5669 df-cnv 5670 df-co 5671 df-dm 5672 df-rn 5673 df-res 5674 df-ima 5675 df-pred 6303 df-ord 6364 df-on 6365 df-lim 6366 df-suc 6367 df-iota 6493 df-fun 6539 df-fn 6540 df-f 6541 df-f1 6542 df-fo 6543 df-f1o 6544 df-fv 6545 df-riota 7368 df-ov 7414 df-oprab 7415 df-mpo 7416 df-om 7863 df-1st 7986 df-2nd 7987 df-frecs 8278 df-wrecs 8309 df-recs 8358 df-rdg 8397 df-1o 8453 df-er 8694 df-en 8944 df-dom 8945 df-sdom 8946 df-fin 8947 df-pnf 11245 df-mnf 11246 df-xr 11247 df-ltxr 11248 df-le 11249 df-sub 11443 df-neg 11444 df-nn 12234 df-2 12303 df-3 12304 df-4 12305 df-5 12306 df-6 12307 df-7 12308 df-8 12309 df-9 12310 df-n0 12505 df-z 12592 df-dec 12712 df-uz 12863 df-fz 13536 df-struct 17207 df-slot 17242 df-ndx 17254 df-base 17270 df-tset 17329 df-ple 17330 df-ocomp 17331 df-mre 17638 df-mrc 17639 df-acs 17641 df-proset 18350 df-drs 18351 df-poset 18369 df-ipo 18584 |
| This theorem is referenced by: (None) |
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