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| Mirrors > Home > MPE Home > Th. List > dvdsrcl | Structured version Visualization version GIF version | ||
| Description: Closure of a dividing element. (Contributed by Mario Carneiro, 5-Dec-2014.) |
| Ref | Expression |
|---|---|
| dvdsr.1 | ⊢ 𝐵 = (Base‘𝑅) |
| dvdsr.2 | ⊢ ∥ = (∥r‘𝑅) |
| Ref | Expression |
|---|---|
| dvdsrcl | ⊢ (𝑋 ∥ 𝑌 → 𝑋 ∈ 𝐵) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | dvdsr.1 | . . 3 ⊢ 𝐵 = (Base‘𝑅) | |
| 2 | dvdsr.2 | . . 3 ⊢ ∥ = (∥r‘𝑅) | |
| 3 | eqid 2769 | . . 3 ⊢ (.r‘𝑅) = (.r‘𝑅) | |
| 4 | 1, 2, 3 | dvdsr 20443 | . 2 ⊢ (𝑋 ∥ 𝑌 ↔ (𝑋 ∈ 𝐵 ∧ ∃𝑥 ∈ 𝐵 (𝑥(.r‘𝑅)𝑋) = 𝑌)) |
| 5 | 4 | simplbi 501 | 1 ⊢ (𝑋 ∥ 𝑌 → 𝑋 ∈ 𝐵) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1567 ∈ wcel 2149 ∃wrex 3095 class class class wbr 5113 ‘cfv 6537 (class class class)co 7411 Basecbs 17268 .rcmulr 17310 ∥rcdsr 20435 |
| 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-rep 5242 ax-sep 5261 ax-nul 5271 ax-pow 5337 ax-pr 5405 ax-un 7733 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 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-ral 3086 df-rex 3096 df-rab 3424 df-v 3465 df-sbc 3754 df-csb 3862 df-dif 3916 df-un 3918 df-in 3920 df-ss 3930 df-nul 4295 df-if 4493 df-pw 4569 df-sn 4595 df-pr 4597 df-op 4601 df-uni 4877 df-iun 4962 df-br 5114 df-opab 5178 df-mpt 5197 df-id 5557 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-iota 6493 df-fun 6539 df-fv 6545 df-ov 7414 df-dvdsr 20438 |
| This theorem is referenced by: unitcl 20456 rprmasso 33759 |
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