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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 17621 | . . 3 ⊢ (𝐶 ∈ (Moore‘𝑋) → 𝐹:𝒫 𝑋⟶𝐶) |
| 3 | 2 | adantr 480 | . 2 ⊢ ((𝐶 ∈ (Moore‘𝑋) ∧ 𝑈 ⊆ 𝑋) → 𝐹:𝒫 𝑋⟶𝐶) |
| 4 | mre1cl 17606 | . . . 4 ⊢ (𝐶 ∈ (Moore‘𝑋) → 𝑋 ∈ 𝐶) | |
| 5 | elpw2g 5303 | . . . 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 7075 | 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 2108 ⊆ wss 3926 𝒫 cpw 4575 ⟶wf 6527 ‘cfv 6531 Moorecmre 17594 mrClscmrc 17595 |
| 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 2007 ax-8 2110 ax-9 2118 ax-10 2141 ax-11 2157 ax-12 2177 ax-ext 2707 ax-sep 5266 ax-nul 5276 ax-pow 5335 ax-pr 5402 ax-un 7729 |
| 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 2065 df-mo 2539 df-eu 2568 df-clab 2714 df-cleq 2727 df-clel 2809 df-nfc 2885 df-ne 2933 df-ral 3052 df-rex 3061 df-rab 3416 df-v 3461 df-dif 3929 df-un 3931 df-in 3933 df-ss 3943 df-nul 4309 df-if 4501 df-pw 4577 df-sn 4602 df-pr 4604 df-op 4608 df-uni 4884 df-int 4923 df-br 5120 df-opab 5182 df-mpt 5202 df-id 5548 df-xp 5660 df-rel 5661 df-cnv 5662 df-co 5663 df-dm 5664 df-rn 5665 df-res 5666 df-ima 5667 df-iota 6484 df-fun 6533 df-fn 6534 df-f 6535 df-fv 6539 df-mre 17598 df-mrc 17599 |
| This theorem is referenced by: mrcsncl 17624 mrcidb 17627 mrcidm 17631 submrc 17640 isacs2 17665 mrelatlub 18572 mreclatBAD 18573 gsumwspan 18824 cycsubg2cl 19194 symggen 19451 odf1o1 19553 cntzspan 19825 gsumzsplit 19908 gsumzoppg 19925 gsumpt 19943 dmdprdd 19982 dprdfeq0 20005 dprdspan 20010 dprdres 20011 dprdz 20013 subgdmdprd 20017 subgdprd 20018 dprd2dlem1 20024 dprd2da 20025 dmdprdsplit2lem 20028 mrccss 21654 ismrcd2 42722 proot1mul 43218 mrelatlubALT 48969 mreclat 48971 |
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