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Mirrors > Home > MPE Home > Th. List > psgneldm | Structured version Visualization version GIF version |
Description: Property of being a finitary permutation. (Contributed by Stefan O'Rear, 28-Aug-2015.) |
Ref | Expression |
---|---|
psgneldm.g | ⊢ 𝐺 = (SymGrp‘𝐷) |
psgneldm.n | ⊢ 𝑁 = (pmSgn‘𝐷) |
psgneldm.b | ⊢ 𝐵 = (Base‘𝐺) |
Ref | Expression |
---|---|
psgneldm | ⊢ (𝑃 ∈ dom 𝑁 ↔ (𝑃 ∈ 𝐵 ∧ dom (𝑃 ∖ I ) ∈ Fin)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | difeq1 4092 | . . . 4 ⊢ (𝑝 = 𝑃 → (𝑝 ∖ I ) = (𝑃 ∖ I )) | |
2 | 1 | dmeqd 5774 | . . 3 ⊢ (𝑝 = 𝑃 → dom (𝑝 ∖ I ) = dom (𝑃 ∖ I )) |
3 | 2 | eleq1d 2897 | . 2 ⊢ (𝑝 = 𝑃 → (dom (𝑝 ∖ I ) ∈ Fin ↔ dom (𝑃 ∖ I ) ∈ Fin)) |
4 | psgneldm.g | . . . 4 ⊢ 𝐺 = (SymGrp‘𝐷) | |
5 | psgneldm.b | . . . 4 ⊢ 𝐵 = (Base‘𝐺) | |
6 | eqid 2821 | . . . 4 ⊢ {𝑝 ∈ 𝐵 ∣ dom (𝑝 ∖ I ) ∈ Fin} = {𝑝 ∈ 𝐵 ∣ dom (𝑝 ∖ I ) ∈ Fin} | |
7 | psgneldm.n | . . . 4 ⊢ 𝑁 = (pmSgn‘𝐷) | |
8 | 4, 5, 6, 7 | psgnfn 18629 | . . 3 ⊢ 𝑁 Fn {𝑝 ∈ 𝐵 ∣ dom (𝑝 ∖ I ) ∈ Fin} |
9 | fndm 6455 | . . 3 ⊢ (𝑁 Fn {𝑝 ∈ 𝐵 ∣ dom (𝑝 ∖ I ) ∈ Fin} → dom 𝑁 = {𝑝 ∈ 𝐵 ∣ dom (𝑝 ∖ I ) ∈ Fin}) | |
10 | 8, 9 | ax-mp 5 | . 2 ⊢ dom 𝑁 = {𝑝 ∈ 𝐵 ∣ dom (𝑝 ∖ I ) ∈ Fin} |
11 | 3, 10 | elrab2 3683 | 1 ⊢ (𝑃 ∈ dom 𝑁 ↔ (𝑃 ∈ 𝐵 ∧ dom (𝑃 ∖ I ) ∈ Fin)) |
Colors of variables: wff setvar class |
Syntax hints: ↔ wb 208 ∧ wa 398 = wceq 1537 ∈ wcel 2114 {crab 3142 ∖ cdif 3933 I cid 5459 dom cdm 5555 Fn wfn 6350 ‘cfv 6355 Fincfn 8509 Basecbs 16483 SymGrpcsymg 18495 pmSgncpsgn 18617 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1970 ax-7 2015 ax-8 2116 ax-9 2124 ax-10 2145 ax-11 2161 ax-12 2177 ax-ext 2793 ax-rep 5190 ax-sep 5203 ax-nul 5210 ax-pow 5266 ax-pr 5330 ax-un 7461 ax-cnex 10593 ax-resscn 10594 ax-1cn 10595 ax-icn 10596 ax-addcl 10597 ax-addrcl 10598 ax-mulcl 10599 ax-mulrcl 10600 ax-mulcom 10601 ax-addass 10602 ax-mulass 10603 ax-distr 10604 ax-i2m1 10605 ax-1ne0 10606 ax-1rid 10607 ax-rnegex 10608 ax-rrecex 10609 ax-cnre 10610 ax-pre-lttri 10611 ax-pre-lttrn 10612 ax-pre-ltadd 10613 ax-pre-mulgt0 10614 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3or 1084 df-3an 1085 df-tru 1540 df-ex 1781 df-nf 1785 df-sb 2070 df-mo 2622 df-eu 2654 df-clab 2800 df-cleq 2814 df-clel 2893 df-nfc 2963 df-ne 3017 df-nel 3124 df-ral 3143 df-rex 3144 df-reu 3145 df-rab 3147 df-v 3496 df-sbc 3773 df-csb 3884 df-dif 3939 df-un 3941 df-in 3943 df-ss 3952 df-pss 3954 df-nul 4292 df-if 4468 df-pw 4541 df-sn 4568 df-pr 4570 df-tp 4572 df-op 4574 df-uni 4839 df-int 4877 df-iun 4921 df-br 5067 df-opab 5129 df-mpt 5147 df-tr 5173 df-id 5460 df-eprel 5465 df-po 5474 df-so 5475 df-fr 5514 df-we 5516 df-xp 5561 df-rel 5562 df-cnv 5563 df-co 5564 df-dm 5565 df-rn 5566 df-res 5567 df-ima 5568 df-pred 6148 df-ord 6194 df-on 6195 df-lim 6196 df-suc 6197 df-iota 6314 df-fun 6357 df-fn 6358 df-f 6359 df-f1 6360 df-fo 6361 df-f1o 6362 df-fv 6363 df-riota 7114 df-ov 7159 df-oprab 7160 df-mpo 7161 df-om 7581 df-1st 7689 df-2nd 7690 df-wrecs 7947 df-recs 8008 df-rdg 8046 df-1o 8102 df-er 8289 df-en 8510 df-dom 8511 df-sdom 8512 df-fin 8513 df-card 9368 df-pnf 10677 df-mnf 10678 df-xr 10679 df-ltxr 10680 df-le 10681 df-sub 10872 df-neg 10873 df-nn 11639 df-n0 11899 df-z 11983 df-uz 12245 df-fz 12894 df-fzo 13035 df-hash 13692 df-word 13863 df-slot 16487 df-base 16489 df-psgn 18619 |
This theorem is referenced by: psgneu 18634 psgnvalfi 18642 psgnran 18643 gsmtrcl 18644 psgnfieu 18646 psgnprfval 18649 |
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