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| Mirrors > Home > ILE Home > Th. List > dvdsrmuld | GIF version | ||
| Description: A left-multiple of 𝑋 is divisible by 𝑋. (Contributed by Mario Carneiro, 1-Dec-2014.) |
| Ref | Expression |
|---|---|
| dvdsrvald.1 | ⊢ (𝜑 → 𝐵 = (Base‘𝑅)) |
| dvdsrvald.2 | ⊢ (𝜑 → ∥ = (∥r‘𝑅)) |
| dvdsrvald.r | ⊢ (𝜑 → 𝑅 ∈ SRing) |
| dvdsrvald.3 | ⊢ (𝜑 → · = (.r‘𝑅)) |
| dvdsr2d.x | ⊢ (𝜑 → 𝑋 ∈ 𝐵) |
| dvdsrmuld.y | ⊢ (𝜑 → 𝑌 ∈ 𝐵) |
| Ref | Expression |
|---|---|
| dvdsrmuld | ⊢ (𝜑 → 𝑋 ∥ (𝑌 · 𝑋)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | dvdsr2d.x | . 2 ⊢ (𝜑 → 𝑋 ∈ 𝐵) | |
| 2 | dvdsrmuld.y | . . 3 ⊢ (𝜑 → 𝑌 ∈ 𝐵) | |
| 3 | eqid 2232 | . . 3 ⊢ (𝑌 · 𝑋) = (𝑌 · 𝑋) | |
| 4 | oveq1 6056 | . . . . 5 ⊢ (𝑧 = 𝑌 → (𝑧 · 𝑋) = (𝑌 · 𝑋)) | |
| 5 | 4 | eqeq1d 2241 | . . . 4 ⊢ (𝑧 = 𝑌 → ((𝑧 · 𝑋) = (𝑌 · 𝑋) ↔ (𝑌 · 𝑋) = (𝑌 · 𝑋))) |
| 6 | 5 | rspcev 2920 | . . 3 ⊢ ((𝑌 ∈ 𝐵 ∧ (𝑌 · 𝑋) = (𝑌 · 𝑋)) → ∃𝑧 ∈ 𝐵 (𝑧 · 𝑋) = (𝑌 · 𝑋)) |
| 7 | 2, 3, 6 | sylancl 413 | . 2 ⊢ (𝜑 → ∃𝑧 ∈ 𝐵 (𝑧 · 𝑋) = (𝑌 · 𝑋)) |
| 8 | dvdsrvald.1 | . . 3 ⊢ (𝜑 → 𝐵 = (Base‘𝑅)) | |
| 9 | dvdsrvald.2 | . . 3 ⊢ (𝜑 → ∥ = (∥r‘𝑅)) | |
| 10 | dvdsrvald.r | . . 3 ⊢ (𝜑 → 𝑅 ∈ SRing) | |
| 11 | dvdsrvald.3 | . . 3 ⊢ (𝜑 → · = (.r‘𝑅)) | |
| 12 | 8, 9, 10, 11 | dvdsrd 14228 | . 2 ⊢ (𝜑 → (𝑋 ∥ (𝑌 · 𝑋) ↔ (𝑋 ∈ 𝐵 ∧ ∃𝑧 ∈ 𝐵 (𝑧 · 𝑋) = (𝑌 · 𝑋)))) |
| 13 | 1, 7, 12 | mpbir2and 953 | 1 ⊢ (𝜑 → 𝑋 ∥ (𝑌 · 𝑋)) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 = wceq 1398 ∈ wcel 2203 ∃wrex 2521 class class class wbr 4108 ‘cfv 5351 (class class class)co 6049 Basecbs 13201 .rcmulr 13280 SRingcsrg 14096 ∥rcdsr 14219 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-in1 619 ax-in2 620 ax-io 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-10 1554 ax-11 1555 ax-i12 1556 ax-bndl 1558 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-13 2205 ax-14 2206 ax-ext 2214 ax-sep 4227 ax-pow 4286 ax-pr 4321 ax-un 4553 ax-setind 4658 ax-cnex 8214 ax-resscn 8215 ax-1cn 8216 ax-1re 8217 ax-icn 8218 ax-addcl 8219 ax-addrcl 8220 ax-mulcl 8221 ax-addcom 8223 ax-addass 8225 ax-i2m1 8228 ax-0lt1 8229 ax-0id 8231 ax-rnegex 8232 ax-pre-ltirr 8235 ax-pre-ltadd 8239 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-fal 1404 df-nf 1510 df-sb 1812 df-eu 2083 df-mo 2084 df-clab 2219 df-cleq 2225 df-clel 2228 df-nfc 2373 df-ne 2413 df-nel 2508 df-ral 2525 df-rex 2526 df-rab 2529 df-v 2814 df-sbc 3042 df-csb 3138 df-dif 3212 df-un 3214 df-in 3216 df-ss 3223 df-nul 3508 df-pw 3670 df-sn 3694 df-pr 3695 df-op 3697 df-uni 3914 df-int 3949 df-br 4109 df-opab 4171 df-mpt 4172 df-id 4413 df-xp 4754 df-rel 4755 df-cnv 4756 df-co 4757 df-dm 4758 df-rn 4759 df-res 4760 df-ima 4761 df-iota 5311 df-fun 5353 df-fn 5354 df-fv 5359 df-riota 6002 df-ov 6052 df-oprab 6053 df-mpo 6054 df-pnf 8306 df-mnf 8307 df-ltxr 8309 df-inn 9234 df-2 9292 df-3 9293 df-ndx 13204 df-slot 13205 df-base 13207 df-sets 13208 df-plusg 13292 df-mulr 13293 df-0g 13460 df-mgm 13558 df-sgrp 13604 df-mnd 13619 df-mgp 14054 df-srg 14097 df-dvdsr 14222 |
| This theorem is referenced by: dvdsrid 14234 dvdsrtr 14235 dvdsrmul1 14236 dvdsrneg 14237 unitmulclb 14248 unitgrp 14250 subrguss 14370 subrgunit 14373 |
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