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| Mirrors > Home > MPE Home > Th. List > mrccl | Structured version Visualization version GIF version | ||
| Description: The Moore closure of a set is a closed set. (Contributed by Stefan O'Rear, 31-Jan-2015.) |
| Ref | Expression |
|---|---|
| mrcfval.f | ⊢ 𝐹 = (mrCls‘𝐶) |
| Ref | Expression |
|---|---|
| mrccl | ⊢ ((𝐶 ∈ (Moore‘𝑋) ∧ 𝑈 ⊆ 𝑋) → (𝐹‘𝑈) ∈ 𝐶) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | mrcfval.f | . . . 4 ⊢ 𝐹 = (mrCls‘𝐶) | |
| 2 | 1 | mrcf 17570 | . . 3 ⊢ (𝐶 ∈ (Moore‘𝑋) → 𝐹:𝒫 𝑋⟶𝐶) |
| 3 | 2 | adantr 480 | . 2 ⊢ ((𝐶 ∈ (Moore‘𝑋) ∧ 𝑈 ⊆ 𝑋) → 𝐹:𝒫 𝑋⟶𝐶) |
| 4 | mre1cl 17555 | . . . 4 ⊢ (𝐶 ∈ (Moore‘𝑋) → 𝑋 ∈ 𝐶) | |
| 5 | elpw2g 5288 | . . . 4 ⊢ (𝑋 ∈ 𝐶 → (𝑈 ∈ 𝒫 𝑋 ↔ 𝑈 ⊆ 𝑋)) | |
| 6 | 4, 5 | syl 17 | . . 3 ⊢ (𝐶 ∈ (Moore‘𝑋) → (𝑈 ∈ 𝒫 𝑋 ↔ 𝑈 ⊆ 𝑋)) |
| 7 | 6 | biimpar 477 | . 2 ⊢ ((𝐶 ∈ (Moore‘𝑋) ∧ 𝑈 ⊆ 𝑋) → 𝑈 ∈ 𝒫 𝑋) |
| 8 | 3, 7 | ffvelcdmd 7057 | 1 ⊢ ((𝐶 ∈ (Moore‘𝑋) ∧ 𝑈 ⊆ 𝑋) → (𝐹‘𝑈) ∈ 𝐶) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 206 ∧ wa 395 = wceq 1540 ∈ wcel 2109 ⊆ wss 3914 𝒫 cpw 4563 ⟶wf 6507 ‘cfv 6511 Moorecmre 17543 mrClscmrc 17544 |
| 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 1967 ax-7 2008 ax-8 2111 ax-9 2119 ax-10 2142 ax-11 2158 ax-12 2178 ax-ext 2701 ax-sep 5251 ax-nul 5261 ax-pow 5320 ax-pr 5387 ax-un 7711 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3an 1088 df-tru 1543 df-fal 1553 df-ex 1780 df-nf 1784 df-sb 2066 df-mo 2533 df-eu 2562 df-clab 2708 df-cleq 2721 df-clel 2803 df-nfc 2878 df-ne 2926 df-ral 3045 df-rex 3054 df-rab 3406 df-v 3449 df-dif 3917 df-un 3919 df-in 3921 df-ss 3931 df-nul 4297 df-if 4489 df-pw 4565 df-sn 4590 df-pr 4592 df-op 4596 df-uni 4872 df-int 4911 df-br 5108 df-opab 5170 df-mpt 5189 df-id 5533 df-xp 5644 df-rel 5645 df-cnv 5646 df-co 5647 df-dm 5648 df-rn 5649 df-res 5650 df-ima 5651 df-iota 6464 df-fun 6513 df-fn 6514 df-f 6515 df-fv 6519 df-mre 17547 df-mrc 17548 |
| This theorem is referenced by: mrcsncl 17573 mrcidb 17576 mrcidm 17580 submrc 17589 isacs2 17614 mrelatlub 18521 mreclatBAD 18522 gsumwspan 18773 cycsubg2cl 19143 symggen 19400 odf1o1 19502 cntzspan 19774 gsumzsplit 19857 gsumzoppg 19874 gsumpt 19892 dmdprdd 19931 dprdfeq0 19954 dprdspan 19959 dprdres 19960 dprdz 19962 subgdmdprd 19966 subgdprd 19967 dprd2dlem1 19973 dprd2da 19974 dmdprdsplit2lem 19977 mrccss 21603 ismrcd2 42687 proot1mul 43183 mrelatlubALT 48983 mreclat 48985 |
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