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| Mirrors > Home > ILE Home > Th. List > imasmulfn | GIF version | ||
| Description: The image structure's ring multiplication is a function. (Contributed by Mario Carneiro, 23-Feb-2015.) |
| Ref | Expression |
|---|---|
| imasaddf.f | ⊢ (𝜑 → 𝐹:𝑉–onto→𝐵) |
| imasaddf.e | ⊢ ((𝜑 ∧ (𝑎 ∈ 𝑉 ∧ 𝑏 ∈ 𝑉) ∧ (𝑝 ∈ 𝑉 ∧ 𝑞 ∈ 𝑉)) → (((𝐹‘𝑎) = (𝐹‘𝑝) ∧ (𝐹‘𝑏) = (𝐹‘𝑞)) → (𝐹‘(𝑎 · 𝑏)) = (𝐹‘(𝑝 · 𝑞)))) |
| imasaddf.u | ⊢ (𝜑 → 𝑈 = (𝐹 “s 𝑅)) |
| imasaddf.v | ⊢ (𝜑 → 𝑉 = (Base‘𝑅)) |
| imasaddf.r | ⊢ (𝜑 → 𝑅 ∈ 𝑍) |
| imasmulf.p | ⊢ · = (.r‘𝑅) |
| imasmulf.a | ⊢ ∙ = (.r‘𝑈) |
| Ref | Expression |
|---|---|
| imasmulfn | ⊢ (𝜑 → ∙ Fn (𝐵 × 𝐵)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | imasaddf.f | . 2 ⊢ (𝜑 → 𝐹:𝑉–onto→𝐵) | |
| 2 | imasaddf.e | . 2 ⊢ ((𝜑 ∧ (𝑎 ∈ 𝑉 ∧ 𝑏 ∈ 𝑉) ∧ (𝑝 ∈ 𝑉 ∧ 𝑞 ∈ 𝑉)) → (((𝐹‘𝑎) = (𝐹‘𝑝) ∧ (𝐹‘𝑏) = (𝐹‘𝑞)) → (𝐹‘(𝑎 · 𝑏)) = (𝐹‘(𝑝 · 𝑞)))) | |
| 3 | imasaddf.u | . . 3 ⊢ (𝜑 → 𝑈 = (𝐹 “s 𝑅)) | |
| 4 | imasaddf.v | . . 3 ⊢ (𝜑 → 𝑉 = (Base‘𝑅)) | |
| 5 | imasaddf.r | . . 3 ⊢ (𝜑 → 𝑅 ∈ 𝑍) | |
| 6 | imasmulf.p | . . 3 ⊢ · = (.r‘𝑅) | |
| 7 | imasmulf.a | . . 3 ⊢ ∙ = (.r‘𝑈) | |
| 8 | 3, 4, 1, 5, 6, 7 | imasmulr 13191 | . 2 ⊢ (𝜑 → ∙ = ∪ 𝑝 ∈ 𝑉 ∪ 𝑞 ∈ 𝑉 {〈〈(𝐹‘𝑝), (𝐹‘𝑞)〉, (𝐹‘(𝑝 · 𝑞))〉}) |
| 9 | basfn 12940 | . . . 4 ⊢ Base Fn V | |
| 10 | 5 | elexd 2787 | . . . 4 ⊢ (𝜑 → 𝑅 ∈ V) |
| 11 | funfvex 5603 | . . . . 5 ⊢ ((Fun Base ∧ 𝑅 ∈ dom Base) → (Base‘𝑅) ∈ V) | |
| 12 | 11 | funfni 5382 | . . . 4 ⊢ ((Base Fn V ∧ 𝑅 ∈ V) → (Base‘𝑅) ∈ V) |
| 13 | 9, 10, 12 | sylancr 414 | . . 3 ⊢ (𝜑 → (Base‘𝑅) ∈ V) |
| 14 | 4, 13 | eqeltrd 2283 | . 2 ⊢ (𝜑 → 𝑉 ∈ V) |
| 15 | mulrslid 13014 | . . . . 5 ⊢ (.r = Slot (.r‘ndx) ∧ (.r‘ndx) ∈ ℕ) | |
| 16 | 15 | slotex 12909 | . . . 4 ⊢ (𝑅 ∈ 𝑍 → (.r‘𝑅) ∈ V) |
| 17 | 5, 16 | syl 14 | . . 3 ⊢ (𝜑 → (.r‘𝑅) ∈ V) |
| 18 | 6, 17 | eqeltrid 2293 | . 2 ⊢ (𝜑 → · ∈ V) |
| 19 | 1, 2, 8, 14, 18 | imasaddfnlemg 13196 | 1 ⊢ (𝜑 → ∙ Fn (𝐵 × 𝐵)) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ∧ wa 104 ∧ w3a 981 = wceq 1373 ∈ wcel 2177 Vcvv 2773 × cxp 4678 Fn wfn 5272 –onto→wfo 5275 ‘cfv 5277 (class class class)co 5954 Basecbs 12882 .rcmulr 12960 “s cimas 13181 |
| 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 615 ax-in2 616 ax-io 711 ax-5 1471 ax-7 1472 ax-gen 1473 ax-ie1 1517 ax-ie2 1518 ax-8 1528 ax-10 1529 ax-11 1530 ax-i12 1531 ax-bndl 1533 ax-4 1534 ax-17 1550 ax-i9 1554 ax-ial 1558 ax-i5r 1559 ax-13 2179 ax-14 2180 ax-ext 2188 ax-coll 4164 ax-sep 4167 ax-pow 4223 ax-pr 4258 ax-un 4485 ax-setind 4590 ax-cnex 8029 ax-resscn 8030 ax-1cn 8031 ax-1re 8032 ax-icn 8033 ax-addcl 8034 ax-addrcl 8035 ax-mulcl 8036 ax-addcom 8038 ax-addass 8040 ax-i2m1 8043 ax-0lt1 8044 ax-0id 8046 ax-rnegex 8047 ax-pre-ltirr 8050 ax-pre-lttrn 8052 ax-pre-ltadd 8054 |
| This theorem depends on definitions: df-bi 117 df-3or 982 df-3an 983 df-tru 1376 df-fal 1379 df-nf 1485 df-sb 1787 df-eu 2058 df-mo 2059 df-clab 2193 df-cleq 2199 df-clel 2202 df-nfc 2338 df-ne 2378 df-nel 2473 df-ral 2490 df-rex 2491 df-reu 2492 df-rab 2494 df-v 2775 df-sbc 3001 df-csb 3096 df-dif 3170 df-un 3172 df-in 3174 df-ss 3181 df-nul 3463 df-pw 3620 df-sn 3641 df-pr 3642 df-tp 3643 df-op 3644 df-uni 3854 df-int 3889 df-iun 3932 df-br 4049 df-opab 4111 df-mpt 4112 df-id 4345 df-xp 4686 df-rel 4687 df-cnv 4688 df-co 4689 df-dm 4690 df-rn 4691 df-res 4692 df-ima 4693 df-iota 5238 df-fun 5279 df-fn 5280 df-f 5281 df-f1 5282 df-fo 5283 df-f1o 5284 df-fv 5285 df-ov 5957 df-oprab 5958 df-mpo 5959 df-pnf 8122 df-mnf 8123 df-ltxr 8125 df-inn 9050 df-2 9108 df-3 9109 df-ndx 12885 df-slot 12886 df-base 12888 df-plusg 12972 df-mulr 12973 df-iimas 13184 |
| This theorem is referenced by: (None) |
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