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| Mirrors > Home > MPE Home > Th. List > imasmndf1 | Structured version Visualization version 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⟶1-1𝐵 ∧ 𝑅 ∈ Mnd) → 𝑈 ∈ Mnd) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | imasmndf1.u | . . . 4 ⊢ 𝑈 = (𝐹 “s 𝑅) | |
| 2 | 1 | a1i 11 | . . 3 ⊢ ((𝐹:𝑉⟶1-1𝐵 ∧ 𝑅 ∈ Mnd) → 𝑈 = (𝐹 “s 𝑅)) |
| 3 | imasmndf1.v | . . . 4 ⊢ 𝑉 = (Base‘𝑅) | |
| 4 | 3 | a1i 11 | . . 3 ⊢ ((𝐹:𝑉⟶1-1𝐵 ∧ 𝑅 ∈ Mnd) → 𝑉 = (Base‘𝑅)) |
| 5 | eqid 2763 | . . 3 ⊢ (+g‘𝑅) = (+g‘𝑅) | |
| 6 | f1f1orn 6866 | . . . . 5 ⊢ (𝐹:𝑉⟶1-1𝐵 → 𝐹:𝑉⟶1-1ontoran 𝐹) | |
| 7 | 6 | adantr 486 | . . . 4 ⊢ ((𝐹:𝑉⟶1-1𝐵 ∧ 𝑅 ∈ Mnd) → 𝐹:𝑉⟶1-1ontoran 𝐹) |
| 8 | f1ofo 6862 | . . . 4 ⊢ (𝐹:𝑉⟶1-1ontoran 𝐹 → 𝐹:𝑉⟶ontoran 𝐹) | |
| 9 | 7, 8 | syl 18 | . . 3 ⊢ ((𝐹:𝑉⟶1-1𝐵 ∧ 𝑅 ∈ Mnd) → 𝐹:𝑉⟶ontoran 𝐹) |
| 10 | 7 | f1ocpbl 17747 | . . 3 ⊢ (((𝐹:𝑉⟶1-1𝐵 ∧ 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 490 | . . 3 ⊢ ((𝐹:𝑉⟶1-1𝐵 ∧ 𝑅 ∈ Mnd) → 𝑅 ∈ Mnd) | |
| 12 | eqid 2763 | . . 3 ⊢ (0g‘𝑅) = (0g‘𝑅) | |
| 13 | 2, 4, 5, 9, 10, 11, 12 | imasmnd 19019 | . 2 ⊢ ((𝐹:𝑉⟶1-1𝐵 ∧ 𝑅 ∈ Mnd) → (𝑈 ∈ Mnd ∧ (𝐹‘(0g‘𝑅)) = (0g‘𝑈))) |
| 14 | 13 | simpld 500 | 1 ⊢ ((𝐹:𝑉⟶1-1𝐵 ∧ 𝑅 ∈ Mnd) → 𝑈 ∈ Mnd) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 401 = wceq 1570 ∈ wcel 2147 ran crn 5659 ⟶1-1wf1 6563 ⟶ontowfo 6564 ⟶1-1ontowf1o 6565 ‘cfv 6566 (class class class)co 7451 Basecbs 17431 +gcplusg 17472 0gc0g 17660 “s cimas 17726 Mndcmnd 18973 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1945 ax-6 2002 ax-7 2043 ax-8 2149 ax-9 2157 ax-10 2180 ax-11 2197 ax-12 2216 ax-ext 2735 ax-rep 5238 ax-sep 5255 ax-nul 5266 ax-pow 5334 ax-pr 5398 ax-un 7783 ax-cnex 11295 ax-resscn 11296 ax-1cn 11297 ax-icn 11298 ax-addcl 11299 ax-addrcl 11300 ax-mulcl 11301 ax-mulrcl 11302 ax-mulcom 11303 ax-addass 11304 ax-mulass 11305 ax-distr 11306 ax-i2m1 11307 ax-1ne0 11308 ax-1rid 11309 ax-rnegex 11310 ax-rrecex 11311 ax-cnre 11312 ax-pre-lttri 11313 ax-pre-lttrn 11314 ax-pre-ltadd 11315 ax-pre-mulgt0 11316 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2102 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2839 df-nfc 2913 df-ne 2960 df-nel 3066 df-ral 3081 df-rex 3091 df-rmo 3369 df-reu 3370 df-rab 3417 df-v 3456 df-sbc 3743 df-csb 3852 df-ss 3901 df-pss 4017 df-dif 4050 df-in 4094 df-un 4154 df-nul 4282 df-if 4486 df-pw 4562 df-sn 4589 df-pr 4591 df-tp 4593 df-op 4841 df-uni 4873 df-iun 4958 df-br 5109 df-opab 5174 df-mpt 5193 df-tr 5219 df-id 5553 df-eprel 5558 df-po 5566 df-so 5567 df-fr 5611 df-we 5613 df-xp 5664 df-rel 5665 df-cnv 5666 df-co 5667 df-dm 5668 df-rn 5669 df-res 5670 df-ima 5671 df-pred 6330 df-ord 6391 df-on 6392 df-lim 6393 df-suc 6394 df-iota 6520 df-fun 6568 df-fn 6569 df-f 6570 df-f1 6571 df-fo 6572 df-f1o 6573 df-fv 6574 df-riota 7408 df-ov 7454 df-oprab 7455 df-mpo 7456 df-om 7912 df-1st 8035 df-2nd 8036 df-frecs 8337 df-wrecs 8368 df-recs 8417 df-rdg 8456 df-1o 8514 df-er 8755 df-en 9012 df-dom 9013 df-sdom 9014 df-fin 9015 df-sup 9471 df-inf 9472 df-pnf 11384 df-mnf 11385 df-xr 11386 df-ltxr 11387 df-le 11388 df-sub 11582 df-neg 11583 df-nn 12376 df-2 12445 df-3 12446 df-4 12447 df-5 12448 df-6 12449 df-7 12450 df-8 12451 df-9 12452 df-n0 12647 df-z 12734 df-dec 12855 df-uz 13006 df-fz 13680 df-struct 17369 df-slot 17404 df-ndx 17416 df-base 17432 df-plusg 17486 df-mulr 17487 df-sca 17489 df-vsca 17490 df-ip 17491 df-tset 17492 df-ple 17493 df-ds 17495 df-0g 17662 df-imas 17730 df-mgm 18866 df-sgrp 18958 df-mnd 18974 |
| This theorem is used by: xpsmnd 19021 |
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