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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 8939 | . . 3 ⊢ (𝐶 ≈ 𝐵 ↔ 𝐵 ≈ 𝐶) | |
2 | bren 8890 | . . 3 ⊢ (𝐵 ≈ 𝐶 ↔ ∃𝑓 𝑓:𝐵–1-1-onto→𝐶) | |
3 | 1, 2 | bitri 274 | . 2 ⊢ (𝐶 ≈ 𝐵 ↔ ∃𝑓 𝑓:𝐵–1-1-onto→𝐶) |
4 | eqidd 2737 | . . . . . . 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 6789 | . . . . . . . 8 ⊢ (𝑓:𝐵–1-1-onto→𝐶 → 𝑓:𝐵–onto→𝐶) | |
8 | 7 | adantr 481 | . . . . . . 7 ⊢ ((𝑓:𝐵–1-1-onto→𝐶 ∧ 𝑅 ∈ Abel) → 𝑓:𝐵–onto→𝐶) |
9 | simpr 485 | . . . . . . 7 ⊢ ((𝑓:𝐵–1-1-onto→𝐶 ∧ 𝑅 ∈ Abel) → 𝑅 ∈ Abel) | |
10 | 4, 6, 8, 9 | imasbas 17391 | . . . . . 6 ⊢ ((𝑓:𝐵–1-1-onto→𝐶 ∧ 𝑅 ∈ Abel) → 𝐶 = (Base‘(𝑓 “s 𝑅))) |
11 | simpl 483 | . . . . . . . . . 10 ⊢ ((𝑓:𝐵–1-1-onto→𝐶 ∧ 𝑅 ∈ Abel) → 𝑓:𝐵–1-1-onto→𝐶) | |
12 | ablgrp 19563 | . . . . . . . . . . 11 ⊢ (𝑅 ∈ Abel → 𝑅 ∈ Grp) | |
13 | 12 | adantl 482 | . . . . . . . . . 10 ⊢ ((𝑓:𝐵–1-1-onto→𝐶 ∧ 𝑅 ∈ Abel) → 𝑅 ∈ Grp) |
14 | 4, 6, 11, 13 | imasgim 41403 | . . . . . . . . 9 ⊢ ((𝑓:𝐵–1-1-onto→𝐶 ∧ 𝑅 ∈ Abel) → 𝑓 ∈ (𝑅 GrpIso (𝑓 “s 𝑅))) |
15 | brgici 19056 | . . . . . . . . 9 ⊢ (𝑓 ∈ (𝑅 GrpIso (𝑓 “s 𝑅)) → 𝑅 ≃𝑔 (𝑓 “s 𝑅)) | |
16 | gicabl 41402 | . . . . . . . . 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 231 | . . . . . . 7 ⊢ ((𝑓:𝐵–1-1-onto→𝐶 ∧ 𝑅 ∈ Abel) → (𝑓 “s 𝑅) ∈ Abel) |
19 | basfn 17084 | . . . . . . . 8 ⊢ Base Fn V | |
20 | ssv 3967 | . . . . . . . 8 ⊢ Abel ⊆ V | |
21 | fnfvima 7180 | . . . . . . . 8 ⊢ ((Base Fn V ∧ Abel ⊆ V ∧ (𝑓 “s 𝑅) ∈ Abel) → (Base‘(𝑓 “s 𝑅)) ∈ (Base “ Abel)) | |
22 | 19, 20, 21 | mp3an12 1451 | . . . . . . 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 2838 | . . . . 5 ⊢ ((𝑓:𝐵–1-1-onto→𝐶 ∧ 𝑅 ∈ Abel) → 𝐶 ∈ (Base “ Abel)) |
25 | 24 | ex 413 | . . . 4 ⊢ (𝑓:𝐵–1-1-onto→𝐶 → (𝑅 ∈ Abel → 𝐶 ∈ (Base “ Abel))) |
26 | 25 | exlimiv 1933 | . . 3 ⊢ (∃𝑓 𝑓:𝐵–1-1-onto→𝐶 → (𝑅 ∈ Abel → 𝐶 ∈ (Base “ Abel))) |
27 | 26 | impcom 408 | . 2 ⊢ ((𝑅 ∈ Abel ∧ ∃𝑓 𝑓:𝐵–1-1-onto→𝐶) → 𝐶 ∈ (Base “ Abel)) |
28 | 3, 27 | sylan2b 594 | 1 ⊢ ((𝑅 ∈ Abel ∧ 𝐶 ≈ 𝐵) → 𝐶 ∈ (Base “ Abel)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 205 ∧ wa 396 = wceq 1541 ∃wex 1781 ∈ wcel 2106 Vcvv 3444 ⊆ wss 3909 class class class wbr 5104 “ cima 5635 Fn wfn 6489 –onto→wfo 6492 –1-1-onto→wf1o 6493 ‘cfv 6494 (class class class)co 7354 ≈ cen 8877 Basecbs 17080 “s cimas 17383 Grpcgrp 18745 GrpIso cgim 19043 ≃𝑔 cgic 19044 Abelcabl 19559 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1913 ax-6 1971 ax-7 2011 ax-8 2108 ax-9 2116 ax-10 2137 ax-11 2154 ax-12 2171 ax-ext 2707 ax-rep 5241 ax-sep 5255 ax-nul 5262 ax-pow 5319 ax-pr 5383 ax-un 7669 ax-cnex 11104 ax-resscn 11105 ax-1cn 11106 ax-icn 11107 ax-addcl 11108 ax-addrcl 11109 ax-mulcl 11110 ax-mulrcl 11111 ax-mulcom 11112 ax-addass 11113 ax-mulass 11114 ax-distr 11115 ax-i2m1 11116 ax-1ne0 11117 ax-1rid 11118 ax-rnegex 11119 ax-rrecex 11120 ax-cnre 11121 ax-pre-lttri 11122 ax-pre-lttrn 11123 ax-pre-ltadd 11124 ax-pre-mulgt0 11125 |
This theorem depends on definitions: df-bi 206 df-an 397 df-or 846 df-3or 1088 df-3an 1089 df-tru 1544 df-fal 1554 df-ex 1782 df-nf 1786 df-sb 2068 df-mo 2538 df-eu 2567 df-clab 2714 df-cleq 2728 df-clel 2814 df-nfc 2888 df-ne 2943 df-nel 3049 df-ral 3064 df-rex 3073 df-rmo 3352 df-reu 3353 df-rab 3407 df-v 3446 df-sbc 3739 df-csb 3855 df-dif 3912 df-un 3914 df-in 3916 df-ss 3926 df-pss 3928 df-nul 4282 df-if 4486 df-pw 4561 df-sn 4586 df-pr 4588 df-tp 4590 df-op 4592 df-uni 4865 df-iun 4955 df-br 5105 df-opab 5167 df-mpt 5188 df-tr 5222 df-id 5530 df-eprel 5536 df-po 5544 df-so 5545 df-fr 5587 df-we 5589 df-xp 5638 df-rel 5639 df-cnv 5640 df-co 5641 df-dm 5642 df-rn 5643 df-res 5644 df-ima 5645 df-pred 6252 df-ord 6319 df-on 6320 df-lim 6321 df-suc 6322 df-iota 6446 df-fun 6496 df-fn 6497 df-f 6498 df-f1 6499 df-fo 6500 df-f1o 6501 df-fv 6502 df-riota 7310 df-ov 7357 df-oprab 7358 df-mpo 7359 df-om 7800 df-1st 7918 df-2nd 7919 df-frecs 8209 df-wrecs 8240 df-recs 8314 df-rdg 8353 df-1o 8409 df-er 8645 df-en 8881 df-dom 8882 df-sdom 8883 df-fin 8884 df-sup 9375 df-inf 9376 df-pnf 11188 df-mnf 11189 df-xr 11190 df-ltxr 11191 df-le 11192 df-sub 11384 df-neg 11385 df-nn 12151 df-2 12213 df-3 12214 df-4 12215 df-5 12216 df-6 12217 df-7 12218 df-8 12219 df-9 12220 df-n0 12411 df-z 12497 df-dec 12616 df-uz 12761 df-fz 13422 df-struct 17016 df-slot 17051 df-ndx 17063 df-base 17081 df-plusg 17143 df-mulr 17144 df-sca 17146 df-vsca 17147 df-ip 17148 df-tset 17149 df-ple 17150 df-ds 17152 df-0g 17320 df-imas 17387 df-mgm 18494 df-sgrp 18543 df-mnd 18554 df-grp 18748 df-minusg 18749 df-ghm 19002 df-gim 19045 df-gic 19046 df-cmn 19560 df-abl 19561 |
This theorem is referenced by: isnumbasgrplem3 41408 |
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