Mathbox for Stefan O'Rear |
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Mirrors > Home > MPE Home > Th. List > Mathboxes > isnumbasgrplem1 | Structured version Visualization version GIF version |
Description: A set which is equipollent to the base set of a definable Abelian group is the base set of some (relabeled) Abelian group. (Contributed by Stefan O'Rear, 8-Jul-2015.) |
Ref | Expression |
---|---|
isnumbasgrplem1.b | ⊢ 𝐵 = (Base‘𝑅) |
Ref | Expression |
---|---|
isnumbasgrplem1 | ⊢ ((𝑅 ∈ Abel ∧ 𝐶 ≈ 𝐵) → 𝐶 ∈ (Base “ Abel)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | ensymb 8665 | . . 3 ⊢ (𝐶 ≈ 𝐵 ↔ 𝐵 ≈ 𝐶) | |
2 | bren 8625 | . . 3 ⊢ (𝐵 ≈ 𝐶 ↔ ∃𝑓 𝑓:𝐵–1-1-onto→𝐶) | |
3 | 1, 2 | bitri 278 | . 2 ⊢ (𝐶 ≈ 𝐵 ↔ ∃𝑓 𝑓:𝐵–1-1-onto→𝐶) |
4 | eqidd 2735 | . . . . . . 7 ⊢ ((𝑓:𝐵–1-1-onto→𝐶 ∧ 𝑅 ∈ Abel) → (𝑓 “s 𝑅) = (𝑓 “s 𝑅)) | |
5 | isnumbasgrplem1.b | . . . . . . . 8 ⊢ 𝐵 = (Base‘𝑅) | |
6 | 5 | a1i 11 | . . . . . . 7 ⊢ ((𝑓:𝐵–1-1-onto→𝐶 ∧ 𝑅 ∈ Abel) → 𝐵 = (Base‘𝑅)) |
7 | f1ofo 6657 | . . . . . . . 8 ⊢ (𝑓:𝐵–1-1-onto→𝐶 → 𝑓:𝐵–onto→𝐶) | |
8 | 7 | adantr 484 | . . . . . . 7 ⊢ ((𝑓:𝐵–1-1-onto→𝐶 ∧ 𝑅 ∈ Abel) → 𝑓:𝐵–onto→𝐶) |
9 | simpr 488 | . . . . . . 7 ⊢ ((𝑓:𝐵–1-1-onto→𝐶 ∧ 𝑅 ∈ Abel) → 𝑅 ∈ Abel) | |
10 | 4, 6, 8, 9 | imasbas 16989 | . . . . . 6 ⊢ ((𝑓:𝐵–1-1-onto→𝐶 ∧ 𝑅 ∈ Abel) → 𝐶 = (Base‘(𝑓 “s 𝑅))) |
11 | simpl 486 | . . . . . . . . . 10 ⊢ ((𝑓:𝐵–1-1-onto→𝐶 ∧ 𝑅 ∈ Abel) → 𝑓:𝐵–1-1-onto→𝐶) | |
12 | ablgrp 19147 | . . . . . . . . . . 11 ⊢ (𝑅 ∈ Abel → 𝑅 ∈ Grp) | |
13 | 12 | adantl 485 | . . . . . . . . . 10 ⊢ ((𝑓:𝐵–1-1-onto→𝐶 ∧ 𝑅 ∈ Abel) → 𝑅 ∈ Grp) |
14 | 4, 6, 11, 13 | imasgim 40580 | . . . . . . . . 9 ⊢ ((𝑓:𝐵–1-1-onto→𝐶 ∧ 𝑅 ∈ Abel) → 𝑓 ∈ (𝑅 GrpIso (𝑓 “s 𝑅))) |
15 | brgici 18646 | . . . . . . . . 9 ⊢ (𝑓 ∈ (𝑅 GrpIso (𝑓 “s 𝑅)) → 𝑅 ≃𝑔 (𝑓 “s 𝑅)) | |
16 | gicabl 40579 | . . . . . . . . 9 ⊢ (𝑅 ≃𝑔 (𝑓 “s 𝑅) → (𝑅 ∈ Abel ↔ (𝑓 “s 𝑅) ∈ Abel)) | |
17 | 14, 15, 16 | 3syl 18 | . . . . . . . 8 ⊢ ((𝑓:𝐵–1-1-onto→𝐶 ∧ 𝑅 ∈ Abel) → (𝑅 ∈ Abel ↔ (𝑓 “s 𝑅) ∈ Abel)) |
18 | 9, 17 | mpbid 235 | . . . . . . 7 ⊢ ((𝑓:𝐵–1-1-onto→𝐶 ∧ 𝑅 ∈ Abel) → (𝑓 “s 𝑅) ∈ Abel) |
19 | basfn 16743 | . . . . . . . 8 ⊢ Base Fn V | |
20 | ssv 3915 | . . . . . . . 8 ⊢ Abel ⊆ V | |
21 | fnfvima 7038 | . . . . . . . 8 ⊢ ((Base Fn V ∧ Abel ⊆ V ∧ (𝑓 “s 𝑅) ∈ Abel) → (Base‘(𝑓 “s 𝑅)) ∈ (Base “ Abel)) | |
22 | 19, 20, 21 | mp3an12 1453 | . . . . . . 7 ⊢ ((𝑓 “s 𝑅) ∈ Abel → (Base‘(𝑓 “s 𝑅)) ∈ (Base “ Abel)) |
23 | 18, 22 | syl 17 | . . . . . 6 ⊢ ((𝑓:𝐵–1-1-onto→𝐶 ∧ 𝑅 ∈ Abel) → (Base‘(𝑓 “s 𝑅)) ∈ (Base “ Abel)) |
24 | 10, 23 | eqeltrd 2834 | . . . . 5 ⊢ ((𝑓:𝐵–1-1-onto→𝐶 ∧ 𝑅 ∈ Abel) → 𝐶 ∈ (Base “ Abel)) |
25 | 24 | ex 416 | . . . 4 ⊢ (𝑓:𝐵–1-1-onto→𝐶 → (𝑅 ∈ Abel → 𝐶 ∈ (Base “ Abel))) |
26 | 25 | exlimiv 1938 | . . 3 ⊢ (∃𝑓 𝑓:𝐵–1-1-onto→𝐶 → (𝑅 ∈ Abel → 𝐶 ∈ (Base “ Abel))) |
27 | 26 | impcom 411 | . 2 ⊢ ((𝑅 ∈ Abel ∧ ∃𝑓 𝑓:𝐵–1-1-onto→𝐶) → 𝐶 ∈ (Base “ Abel)) |
28 | 3, 27 | sylan2b 597 | 1 ⊢ ((𝑅 ∈ Abel ∧ 𝐶 ≈ 𝐵) → 𝐶 ∈ (Base “ Abel)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 209 ∧ wa 399 = wceq 1543 ∃wex 1787 ∈ wcel 2110 Vcvv 3401 ⊆ wss 3857 class class class wbr 5043 “ cima 5543 Fn wfn 6364 –onto→wfo 6367 –1-1-onto→wf1o 6368 ‘cfv 6369 (class class class)co 7202 ≈ cen 8612 Basecbs 16684 “s cimas 16981 Grpcgrp 18337 GrpIso cgim 18633 ≃𝑔 cgic 18634 Abelcabl 19143 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1803 ax-4 1817 ax-5 1918 ax-6 1976 ax-7 2016 ax-8 2112 ax-9 2120 ax-10 2141 ax-11 2158 ax-12 2175 ax-ext 2706 ax-rep 5168 ax-sep 5181 ax-nul 5188 ax-pow 5247 ax-pr 5311 ax-un 7512 ax-cnex 10768 ax-resscn 10769 ax-1cn 10770 ax-icn 10771 ax-addcl 10772 ax-addrcl 10773 ax-mulcl 10774 ax-mulrcl 10775 ax-mulcom 10776 ax-addass 10777 ax-mulass 10778 ax-distr 10779 ax-i2m1 10780 ax-1ne0 10781 ax-1rid 10782 ax-rnegex 10783 ax-rrecex 10784 ax-cnre 10785 ax-pre-lttri 10786 ax-pre-lttrn 10787 ax-pre-ltadd 10788 ax-pre-mulgt0 10789 |
This theorem depends on definitions: df-bi 210 df-an 400 df-or 848 df-3or 1090 df-3an 1091 df-tru 1546 df-fal 1556 df-ex 1788 df-nf 1792 df-sb 2071 df-mo 2537 df-eu 2566 df-clab 2713 df-cleq 2726 df-clel 2812 df-nfc 2882 df-ne 2936 df-nel 3040 df-ral 3059 df-rex 3060 df-reu 3061 df-rmo 3062 df-rab 3063 df-v 3403 df-sbc 3688 df-csb 3803 df-dif 3860 df-un 3862 df-in 3864 df-ss 3874 df-pss 3876 df-nul 4228 df-if 4430 df-pw 4505 df-sn 4532 df-pr 4534 df-tp 4536 df-op 4538 df-uni 4810 df-iun 4896 df-br 5044 df-opab 5106 df-mpt 5125 df-tr 5151 df-id 5444 df-eprel 5449 df-po 5457 df-so 5458 df-fr 5498 df-we 5500 df-xp 5546 df-rel 5547 df-cnv 5548 df-co 5549 df-dm 5550 df-rn 5551 df-res 5552 df-ima 5553 df-pred 6149 df-ord 6205 df-on 6206 df-lim 6207 df-suc 6208 df-iota 6327 df-fun 6371 df-fn 6372 df-f 6373 df-f1 6374 df-fo 6375 df-f1o 6376 df-fv 6377 df-riota 7159 df-ov 7205 df-oprab 7206 df-mpo 7207 df-om 7634 df-1st 7750 df-2nd 7751 df-wrecs 8036 df-recs 8097 df-rdg 8135 df-1o 8191 df-er 8380 df-en 8616 df-dom 8617 df-sdom 8618 df-fin 8619 df-sup 9047 df-inf 9048 df-pnf 10852 df-mnf 10853 df-xr 10854 df-ltxr 10855 df-le 10856 df-sub 11047 df-neg 11048 df-nn 11814 df-2 11876 df-3 11877 df-4 11878 df-5 11879 df-6 11880 df-7 11881 df-8 11882 df-9 11883 df-n0 12074 df-z 12160 df-dec 12277 df-uz 12422 df-fz 13079 df-struct 16686 df-ndx 16687 df-slot 16688 df-base 16690 df-plusg 16780 df-mulr 16781 df-sca 16783 df-vsca 16784 df-ip 16785 df-tset 16786 df-ple 16787 df-ds 16789 df-0g 16918 df-imas 16985 df-mgm 18086 df-sgrp 18135 df-mnd 18146 df-grp 18340 df-minusg 18341 df-ghm 18592 df-gim 18635 df-gic 18636 df-cmn 19144 df-abl 19145 |
This theorem is referenced by: isnumbasgrplem3 40585 |
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