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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 2232 | . 2 ⊢ (+g‘𝑅) = (+g‘𝑅) | |
| 6 | eqid 2232 | . 2 ⊢ (.r‘𝑅) = (.r‘𝑅) | |
| 7 | f1f1orn 5625 | . . . 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 5621 | . . 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 13524 | . 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 13524 | . 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 14100 | 1 ⊢ ((𝐹:𝑉–1-1→𝐵 ∧ 𝑅 ∈ Rng) → 𝑈 ∈ Rng) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ∧ wa 104 = wceq 1398 ∈ wcel 2203 ran crn 4750 –1-1→wf1 5349 –onto→wfo 5350 –1-1-onto→wf1o 5351 ‘cfv 5352 (class class class)co 6050 Basecbs 13212 +gcplusg 13290 .rcmulr 13291 “s cimas 13512 Rngcrng 14076 |
| 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-coll 4225 ax-sep 4228 ax-pow 4287 ax-pr 4322 ax-un 4554 ax-setind 4659 ax-cnex 8218 ax-resscn 8219 ax-1cn 8220 ax-1re 8221 ax-icn 8222 ax-addcl 8223 ax-addrcl 8224 ax-mulcl 8225 ax-addcom 8227 ax-addass 8229 ax-i2m1 8232 ax-0lt1 8233 ax-0id 8235 ax-rnegex 8236 ax-pre-ltirr 8239 ax-pre-lttrn 8241 ax-pre-ltadd 8243 |
| This theorem depends on definitions: df-bi 117 df-3or 1006 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-reu 2527 df-rmo 2528 df-rab 2529 df-v 2815 df-sbc 3043 df-csb 3139 df-dif 3213 df-un 3215 df-in 3217 df-ss 3224 df-nul 3509 df-pw 3671 df-sn 3695 df-pr 3696 df-tp 3697 df-op 3698 df-uni 3915 df-int 3950 df-iun 3993 df-br 4110 df-opab 4172 df-mpt 4173 df-id 4414 df-xp 4755 df-rel 4756 df-cnv 4757 df-co 4758 df-dm 4759 df-rn 4760 df-res 4761 df-ima 4762 df-iota 5312 df-fun 5354 df-fn 5355 df-f 5356 df-f1 5357 df-fo 5358 df-f1o 5359 df-fv 5360 df-riota 6003 df-ov 6053 df-oprab 6054 df-mpo 6055 df-pnf 8310 df-mnf 8311 df-ltxr 8313 df-inn 9238 df-2 9296 df-3 9297 df-ndx 13215 df-slot 13216 df-base 13218 df-sets 13219 df-plusg 13303 df-mulr 13304 df-0g 13471 df-iimas 13515 df-mgm 13569 df-sgrp 13615 df-mnd 13630 df-grp 13716 df-minusg 13717 df-cmn 14003 df-abl 14004 df-mgp 14065 df-rng 14077 |
| This theorem is referenced by: (None) |
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