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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 17544 | . . 3 ⊢ (𝐶 ∈ (Moore‘𝑋) → 𝐹:𝒫 𝑋⟶𝐶) |
| 3 | 2 | adantr 480 | . 2 ⊢ ((𝐶 ∈ (Moore‘𝑋) ∧ 𝑈 ⊆ 𝑋) → 𝐹:𝒫 𝑋⟶𝐶) |
| 4 | mre1cl 17525 | . . . 4 ⊢ (𝐶 ∈ (Moore‘𝑋) → 𝑋 ∈ 𝐶) | |
| 5 | elpw2g 5280 | . . . 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 7039 | 1 ⊢ ((𝐶 ∈ (Moore‘𝑋) ∧ 𝑈 ⊆ 𝑋) → (𝐹‘𝑈) ∈ 𝐶) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 206 ∧ wa 395 = wceq 1542 ∈ wcel 2114 ⊆ wss 3903 𝒫 cpw 4556 ⟶wf 6496 ‘cfv 6500 Moorecmre 17513 mrClscmrc 17514 |
| 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 5243 ax-nul 5253 ax-pow 5312 ax-pr 5379 ax-un 7690 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 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-ral 3053 df-rex 3063 df-rab 3402 df-v 3444 df-dif 3906 df-un 3908 df-in 3910 df-ss 3920 df-nul 4288 df-if 4482 df-pw 4558 df-sn 4583 df-pr 4585 df-op 4589 df-uni 4866 df-int 4905 df-br 5101 df-opab 5163 df-mpt 5182 df-id 5527 df-xp 5638 df-rel 5639 df-cnv 5640 df-co 5641 df-dm 5642 df-rn 5643 df-res 5644 df-ima 5645 df-iota 6456 df-fun 6502 df-fn 6503 df-f 6504 df-fv 6508 df-mre 17517 df-mrc 17518 |
| This theorem is referenced by: mrcsncl 17547 mrcidb 17550 mrcidm 17554 submrc 17563 isacs2 17588 mrelatlub 18497 mreclatBAD 18498 gsumwspan 18783 cycsubg2cl 19152 symggen 19411 odf1o1 19513 cntzspan 19785 gsumzsplit 19868 gsumzoppg 19885 gsumpt 19903 dmdprdd 19942 dprdfeq0 19965 dprdspan 19970 dprdres 19971 dprdz 19973 subgdmdprd 19977 subgdprd 19978 dprd2dlem1 19984 dprd2da 19985 dmdprdsplit2lem 19988 mrccss 21661 ismrcd2 43050 proot1mul 43545 mrelatlubALT 49348 mreclat 49350 |
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