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| Mirrors > Home > ILE Home > Th. List > imasrngf1 | GIF version | ||
| Description: The image of a non-unital ring under an injection is a non-unital ring. (Contributed by AV, 22-Feb-2025.) |
| Ref | Expression |
|---|---|
| imasrngf1.u | ⊢ 𝑈 = (𝐹 “s 𝑅) |
| imasrngf1.v | ⊢ 𝑉 = (Base‘𝑅) |
| Ref | Expression |
|---|---|
| imasrngf1 | ⊢ ((𝐹:𝑉–1-1→𝐵 ∧ 𝑅 ∈ Rng) → 𝑈 ∈ Rng) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | imasrngf1.u | . . 3 ⊢ 𝑈 = (𝐹 “s 𝑅) | |
| 2 | 1 | a1i 9 | . 2 ⊢ ((𝐹:𝑉–1-1→𝐵 ∧ 𝑅 ∈ Rng) → 𝑈 = (𝐹 “s 𝑅)) |
| 3 | imasrngf1.v | . . 3 ⊢ 𝑉 = (Base‘𝑅) | |
| 4 | 3 | a1i 9 | . 2 ⊢ ((𝐹:𝑉–1-1→𝐵 ∧ 𝑅 ∈ Rng) → 𝑉 = (Base‘𝑅)) |
| 5 | eqid 2231 | . 2 ⊢ (+g‘𝑅) = (+g‘𝑅) | |
| 6 | eqid 2231 | . 2 ⊢ (.r‘𝑅) = (.r‘𝑅) | |
| 7 | f1f1orn 5594 | . . . 4 ⊢ (𝐹:𝑉–1-1→𝐵 → 𝐹:𝑉–1-1-onto→ran 𝐹) | |
| 8 | 7 | adantr 276 | . . 3 ⊢ ((𝐹:𝑉–1-1→𝐵 ∧ 𝑅 ∈ Rng) → 𝐹:𝑉–1-1-onto→ran 𝐹) |
| 9 | f1ofo 5590 | . . 3 ⊢ (𝐹:𝑉–1-1-onto→ran 𝐹 → 𝐹:𝑉–onto→ran 𝐹) | |
| 10 | 8, 9 | syl 14 | . 2 ⊢ ((𝐹:𝑉–1-1→𝐵 ∧ 𝑅 ∈ Rng) → 𝐹:𝑉–onto→ran 𝐹) |
| 11 | 8 | f1ocpbl 13393 | . 2 ⊢ (((𝐹:𝑉–1-1→𝐵 ∧ 𝑅 ∈ Rng) ∧ (𝑎 ∈ 𝑉 ∧ 𝑏 ∈ 𝑉) ∧ (𝑝 ∈ 𝑉 ∧ 𝑞 ∈ 𝑉)) → (((𝐹‘𝑎) = (𝐹‘𝑝) ∧ (𝐹‘𝑏) = (𝐹‘𝑞)) → (𝐹‘(𝑎(+g‘𝑅)𝑏)) = (𝐹‘(𝑝(+g‘𝑅)𝑞)))) |
| 12 | 8 | f1ocpbl 13393 | . 2 ⊢ (((𝐹:𝑉–1-1→𝐵 ∧ 𝑅 ∈ Rng) ∧ (𝑎 ∈ 𝑉 ∧ 𝑏 ∈ 𝑉) ∧ (𝑝 ∈ 𝑉 ∧ 𝑞 ∈ 𝑉)) → (((𝐹‘𝑎) = (𝐹‘𝑝) ∧ (𝐹‘𝑏) = (𝐹‘𝑞)) → (𝐹‘(𝑎(.r‘𝑅)𝑏)) = (𝐹‘(𝑝(.r‘𝑅)𝑞)))) |
| 13 | simpr 110 | . 2 ⊢ ((𝐹:𝑉–1-1→𝐵 ∧ 𝑅 ∈ Rng) → 𝑅 ∈ Rng) | |
| 14 | 2, 4, 5, 6, 10, 11, 12, 13 | imasrng 13968 | 1 ⊢ ((𝐹:𝑉–1-1→𝐵 ∧ 𝑅 ∈ Rng) → 𝑈 ∈ Rng) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ∧ wa 104 = wceq 1397 ∈ wcel 2202 ran crn 4726 –1-1→wf1 5323 –onto→wfo 5324 –1-1-onto→wf1o 5325 ‘cfv 5326 (class class class)co 6017 Basecbs 13081 +gcplusg 13159 .rcmulr 13160 “s cimas 13381 Rngcrng 13944 |
| 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 716 ax-5 1495 ax-7 1496 ax-gen 1497 ax-ie1 1541 ax-ie2 1542 ax-8 1552 ax-10 1553 ax-11 1554 ax-i12 1555 ax-bndl 1557 ax-4 1558 ax-17 1574 ax-i9 1578 ax-ial 1582 ax-i5r 1583 ax-13 2204 ax-14 2205 ax-ext 2213 ax-coll 4204 ax-sep 4207 ax-pow 4264 ax-pr 4299 ax-un 4530 ax-setind 4635 ax-cnex 8122 ax-resscn 8123 ax-1cn 8124 ax-1re 8125 ax-icn 8126 ax-addcl 8127 ax-addrcl 8128 ax-mulcl 8129 ax-addcom 8131 ax-addass 8133 ax-i2m1 8136 ax-0lt1 8137 ax-0id 8139 ax-rnegex 8140 ax-pre-ltirr 8143 ax-pre-lttrn 8145 ax-pre-ltadd 8147 |
| This theorem depends on definitions: df-bi 117 df-3or 1005 df-3an 1006 df-tru 1400 df-fal 1403 df-nf 1509 df-sb 1811 df-eu 2082 df-mo 2083 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2363 df-ne 2403 df-nel 2498 df-ral 2515 df-rex 2516 df-reu 2517 df-rmo 2518 df-rab 2519 df-v 2804 df-sbc 3032 df-csb 3128 df-dif 3202 df-un 3204 df-in 3206 df-ss 3213 df-nul 3495 df-pw 3654 df-sn 3675 df-pr 3676 df-tp 3677 df-op 3678 df-uni 3894 df-int 3929 df-iun 3972 df-br 4089 df-opab 4151 df-mpt 4152 df-id 4390 df-xp 4731 df-rel 4732 df-cnv 4733 df-co 4734 df-dm 4735 df-rn 4736 df-res 4737 df-ima 4738 df-iota 5286 df-fun 5328 df-fn 5329 df-f 5330 df-f1 5331 df-fo 5332 df-f1o 5333 df-fv 5334 df-riota 5970 df-ov 6020 df-oprab 6021 df-mpo 6022 df-pnf 8215 df-mnf 8216 df-ltxr 8218 df-inn 9143 df-2 9201 df-3 9202 df-ndx 13084 df-slot 13085 df-base 13087 df-sets 13088 df-plusg 13172 df-mulr 13173 df-0g 13340 df-iimas 13384 df-mgm 13438 df-sgrp 13484 df-mnd 13499 df-grp 13585 df-minusg 13586 df-cmn 13872 df-abl 13873 df-mgp 13933 df-rng 13945 |
| This theorem is referenced by: (None) |
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