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| Mirrors > Home > ILE Home > Th. List > imasmndf1 | GIF version | ||
| Description: The image of a monoid under an injection is a monoid. (Contributed by Mario Carneiro, 24-Feb-2015.) |
| Ref | Expression |
|---|---|
| imasmndf1.u | ⊢ 𝑈 = (𝐹 “s 𝑅) |
| imasmndf1.v | ⊢ 𝑉 = (Base‘𝑅) |
| Ref | Expression |
|---|---|
| imasmndf1 | ⊢ ((𝐹:𝑉–1-1→𝐵 ∧ 𝑅 ∈ Mnd) → 𝑈 ∈ Mnd) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | imasmndf1.u | . . . 4 ⊢ 𝑈 = (𝐹 “s 𝑅) | |
| 2 | 1 | a1i 9 | . . 3 ⊢ ((𝐹:𝑉–1-1→𝐵 ∧ 𝑅 ∈ Mnd) → 𝑈 = (𝐹 “s 𝑅)) |
| 3 | imasmndf1.v | . . . 4 ⊢ 𝑉 = (Base‘𝑅) | |
| 4 | 3 | a1i 9 | . . 3 ⊢ ((𝐹:𝑉–1-1→𝐵 ∧ 𝑅 ∈ Mnd) → 𝑉 = (Base‘𝑅)) |
| 5 | eqid 2230 | . . 3 ⊢ (+g‘𝑅) = (+g‘𝑅) | |
| 6 | f1f1orn 5597 | . . . . 5 ⊢ (𝐹:𝑉–1-1→𝐵 → 𝐹:𝑉–1-1-onto→ran 𝐹) | |
| 7 | 6 | adantr 276 | . . . 4 ⊢ ((𝐹:𝑉–1-1→𝐵 ∧ 𝑅 ∈ Mnd) → 𝐹:𝑉–1-1-onto→ran 𝐹) |
| 8 | f1ofo 5593 | . . . 4 ⊢ (𝐹:𝑉–1-1-onto→ran 𝐹 → 𝐹:𝑉–onto→ran 𝐹) | |
| 9 | 7, 8 | syl 14 | . . 3 ⊢ ((𝐹:𝑉–1-1→𝐵 ∧ 𝑅 ∈ Mnd) → 𝐹:𝑉–onto→ran 𝐹) |
| 10 | 7 | f1ocpbl 13417 | . . 3 ⊢ (((𝐹:𝑉–1-1→𝐵 ∧ 𝑅 ∈ Mnd) ∧ (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)))) |
| 11 | simpr 110 | . . 3 ⊢ ((𝐹:𝑉–1-1→𝐵 ∧ 𝑅 ∈ Mnd) → 𝑅 ∈ Mnd) | |
| 12 | eqid 2230 | . . 3 ⊢ (0g‘𝑅) = (0g‘𝑅) | |
| 13 | 2, 4, 5, 9, 10, 11, 12 | imasmnd 13559 | . 2 ⊢ ((𝐹:𝑉–1-1→𝐵 ∧ 𝑅 ∈ Mnd) → (𝑈 ∈ Mnd ∧ (𝐹‘(0g‘𝑅)) = (0g‘𝑈))) |
| 14 | 13 | simpld 112 | 1 ⊢ ((𝐹:𝑉–1-1→𝐵 ∧ 𝑅 ∈ Mnd) → 𝑈 ∈ Mnd) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ∧ wa 104 = wceq 1397 ∈ wcel 2201 ran crn 4728 –1-1→wf1 5325 –onto→wfo 5326 –1-1-onto→wf1o 5327 ‘cfv 5328 (class class class)co 6023 Basecbs 13105 +gcplusg 13183 0gc0g 13362 “s cimas 13405 Mndcmnd 13522 |
| 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 2203 ax-14 2204 ax-ext 2212 ax-coll 4205 ax-sep 4208 ax-pow 4266 ax-pr 4301 ax-un 4532 ax-setind 4637 ax-cnex 8128 ax-resscn 8129 ax-1cn 8130 ax-1re 8131 ax-icn 8132 ax-addcl 8133 ax-addrcl 8134 ax-mulcl 8135 ax-addcom 8137 ax-addass 8139 ax-i2m1 8142 ax-0lt1 8143 ax-0id 8145 ax-rnegex 8146 ax-pre-ltirr 8149 ax-pre-lttrn 8151 ax-pre-ltadd 8153 |
| 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 1810 df-eu 2081 df-mo 2082 df-clab 2217 df-cleq 2223 df-clel 2226 df-nfc 2362 df-ne 2402 df-nel 2497 df-ral 2514 df-rex 2515 df-reu 2516 df-rmo 2517 df-rab 2518 df-v 2803 df-sbc 3031 df-csb 3127 df-dif 3201 df-un 3203 df-in 3205 df-ss 3212 df-nul 3494 df-pw 3655 df-sn 3676 df-pr 3677 df-tp 3678 df-op 3679 df-uni 3895 df-int 3930 df-iun 3973 df-br 4090 df-opab 4152 df-mpt 4153 df-id 4392 df-xp 4733 df-rel 4734 df-cnv 4735 df-co 4736 df-dm 4737 df-rn 4738 df-res 4739 df-ima 4740 df-iota 5288 df-fun 5330 df-fn 5331 df-f 5332 df-f1 5333 df-fo 5334 df-f1o 5335 df-fv 5336 df-riota 5976 df-ov 6026 df-oprab 6027 df-mpo 6028 df-pnf 8221 df-mnf 8222 df-ltxr 8224 df-inn 9149 df-2 9207 df-3 9208 df-ndx 13108 df-slot 13109 df-base 13111 df-plusg 13196 df-mulr 13197 df-0g 13364 df-iimas 13408 df-mgm 13462 df-sgrp 13508 df-mnd 13523 |
| This theorem is referenced by: (None) |
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