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Theorem psrnegcl 21901

Description: The negative function in the ring of power series. (Contributed by Mario Carneiro, 29-Dec-2014.)

**Hypotheses**
Ref	Expression
psrgrp.s	⊢ 𝑆 = (𝐼 mPwSer 𝑅)
psrgrp.i	⊢ (𝜑 → 𝐼 ∈ 𝑉)
psrgrp.r	⊢ (𝜑 → 𝑅 ∈ Grp)
psrnegcl.d	⊢ 𝐷 = {𝑓 ∈ (ℕ₀ ↑_m 𝐼) ∣ (^◡𝑓 “ ℕ) ∈ Fin}
psrnegcl.i	⊢ 𝑁 = (inv_g‘𝑅)
psrnegcl.b	⊢ 𝐵 = (Base‘𝑆)
psrnegcl.z	⊢ (𝜑 → 𝑋 ∈ 𝐵)

**Assertion**
Ref	Expression
psrnegcl	⊢ (𝜑 → (𝑁 ∘ 𝑋) ∈ 𝐵)

Distinct variable group: 𝑓,𝐼 Allowed substitution hints: 𝜑(𝑓) 𝐵(𝑓) 𝐷(𝑓) 𝑅(𝑓) 𝑆(𝑓) 𝑁(𝑓) 𝑉(𝑓) 𝑋(𝑓)

**Proof of Theorem psrnegcl**
Step	Hyp	Ref	Expression
1		eqid 2733	. . . . . 6 ⊢ (Base‘𝑅) = (Base‘𝑅)
2		psrnegcl.i	. . . . . 6 ⊢ 𝑁 = (inv_g‘𝑅)
3		psrgrp.r	. . . . . 6 ⊢ (𝜑 → 𝑅 ∈ Grp)
4	1, 2, 3	grpinvf1o 18932	. . . . 5 ⊢ (𝜑 → 𝑁:(Base‘𝑅)–1-1-onto→(Base‘𝑅))
5		f1of 6771	. . . . 5 ⊢ (𝑁:(Base‘𝑅)–1-1-onto→(Base‘𝑅) → 𝑁:(Base‘𝑅)⟶(Base‘𝑅))
6	4, 5	syl 17	. . . 4 ⊢ (𝜑 → 𝑁:(Base‘𝑅)⟶(Base‘𝑅))
7		psrgrp.s	. . . . 5 ⊢ 𝑆 = (𝐼 mPwSer 𝑅)
8		psrnegcl.d	. . . . 5 ⊢ 𝐷 = {𝑓 ∈ (ℕ₀ ↑_m 𝐼) ∣ (^◡𝑓 “ ℕ) ∈ Fin}
9		psrnegcl.b	. . . . 5 ⊢ 𝐵 = (Base‘𝑆)
10		psrnegcl.z	. . . . 5 ⊢ (𝜑 → 𝑋 ∈ 𝐵)
11	7, 1, 8, 9, 10	psrelbas 21881	. . . 4 ⊢ (𝜑 → 𝑋:𝐷⟶(Base‘𝑅))
12		fco 6683	. . . 4 ⊢ ((𝑁:(Base‘𝑅)⟶(Base‘𝑅) ∧ 𝑋:𝐷⟶(Base‘𝑅)) → (𝑁 ∘ 𝑋):𝐷⟶(Base‘𝑅))
13	6, 11, 12	syl2anc 584	. . 3 ⊢ (𝜑 → (𝑁 ∘ 𝑋):𝐷⟶(Base‘𝑅))
14		fvex 6844	. . . 4 ⊢ (Base‘𝑅) ∈ V
15		ovex 7388	. . . . 5 ⊢ (ℕ₀ ↑_m 𝐼) ∈ V
16	8, 15	rabex2 5283	. . . 4 ⊢ 𝐷 ∈ V
17	14, 16	elmap 8804	. . 3 ⊢ ((𝑁 ∘ 𝑋) ∈ ((Base‘𝑅) ↑_m 𝐷) ↔ (𝑁 ∘ 𝑋):𝐷⟶(Base‘𝑅))
18	13, 17	sylibr 234	. 2 ⊢ (𝜑 → (𝑁 ∘ 𝑋) ∈ ((Base‘𝑅) ↑_m 𝐷))
19		psrgrp.i	. . 3 ⊢ (𝜑 → 𝐼 ∈ 𝑉)
20	7, 1, 8, 9, 19	psrbas 21880	. 2 ⊢ (𝜑 → 𝐵 = ((Base‘𝑅) ↑_m 𝐷))
21	18, 20	eleqtrrd 2836	1 ⊢ (𝜑 → (𝑁 ∘ 𝑋) ∈ 𝐵)

Colors of variables: wff setvar class

Syntax hints: → wi 4 = wceq 1541 ∈ wcel 2113 {crab 3397 ^◡ccnv 5620 “ cima 5624 ∘ ccom 5625 ⟶wf 6485 –1-1-onto→wf1o 6488 ‘cfv 6489 (class class class)co 7355 ↑_m cmap 8759 Fincfn 8878 ℕcn 12135 ℕ₀cn0 12391 Basecbs 17130 Grpcgrp 18856 inv_gcminusg 18857 mPwSer cmps 21851

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 1968 ax-7 2009 ax-8 2115 ax-9 2123 ax-10 2146 ax-11 2162 ax-12 2182 ax-ext 2705 ax-rep 5221 ax-sep 5238 ax-nul 5248 ax-pow 5307 ax-pr 5374 ax-un 7677 ax-cnex 11072 ax-resscn 11073 ax-1cn 11074 ax-icn 11075 ax-addcl 11076 ax-addrcl 11077 ax-mulcl 11078 ax-mulrcl 11079 ax-mulcom 11080 ax-addass 11081 ax-mulass 11082 ax-distr 11083 ax-i2m1 11084 ax-1ne0 11085 ax-1rid 11086 ax-rnegex 11087 ax-rrecex 11088 ax-cnre 11089 ax-pre-lttri 11090 ax-pre-lttrn 11091 ax-pre-ltadd 11092 ax-pre-mulgt0 11093

This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3or 1087 df-3an 1088 df-tru 1544 df-fal 1554 df-ex 1781 df-nf 1785 df-sb 2068 df-mo 2537 df-eu 2566 df-clab 2712 df-cleq 2725 df-clel 2808 df-nfc 2883 df-ne 2931 df-nel 3035 df-ral 3050 df-rex 3059 df-rmo 3348 df-reu 3349 df-rab 3398 df-v 3440 df-sbc 3739 df-csb 3848 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-pss 3919 df-nul 4285 df-if 4477 df-pw 4553 df-sn 4578 df-pr 4580 df-tp 4582 df-op 4584 df-uni 4861 df-iun 4945 df-br 5096 df-opab 5158 df-mpt 5177 df-tr 5203 df-id 5516 df-eprel 5521 df-po 5529 df-so 5530 df-fr 5574 df-we 5576 df-xp 5627 df-rel 5628 df-cnv 5629 df-co 5630 df-dm 5631 df-rn 5632 df-res 5633 df-ima 5634 df-pred 6256 df-ord 6317 df-on 6318 df-lim 6319 df-suc 6320 df-iota 6445 df-fun 6491 df-fn 6492 df-f 6493 df-f1 6494 df-fo 6495 df-f1o 6496 df-fv 6497 df-riota 7312 df-ov 7358 df-oprab 7359 df-mpo 7360 df-of 7619 df-om 7806 df-1st 7930 df-2nd 7931 df-supp 8100 df-frecs 8220 df-wrecs 8251 df-recs 8300 df-rdg 8338 df-1o 8394 df-er 8631 df-map 8761 df-en 8879 df-dom 8880 df-sdom 8881 df-fin 8882 df-fsupp 9256 df-pnf 11158 df-mnf 11159 df-xr 11160 df-ltxr 11161 df-le 11162 df-sub 11356 df-neg 11357 df-nn 12136 df-2 12198 df-3 12199 df-4 12200 df-5 12201 df-6 12202 df-7 12203 df-8 12204 df-9 12205 df-n0 12392 df-z 12479 df-uz 12743 df-fz 13418 df-struct 17068 df-slot 17103 df-ndx 17115 df-base 17131 df-plusg 17184 df-mulr 17185 df-sca 17187 df-vsca 17188 df-tset 17190 df-0g 17355 df-mgm 18558 df-sgrp 18637 df-mnd 18653 df-grp 18859 df-minusg 18860 df-psr 21856

This theorem is referenced by: psrlinv 21902 psrgrpOLD 21904 psrneg 21906

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