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Theorem psrnegcl 19165

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 2609	. . . . . 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 17256	. . . . 5 ⊢ (𝜑 → 𝑁:(Base‘𝑅)–1-1-onto→(Base‘𝑅))
5		f1of 6034	. . . . 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 19148	. . . 4 ⊢ (𝜑 → 𝑋:𝐷⟶(Base‘𝑅))
12		fco 5956	. . . 4 ⊢ ((𝑁:(Base‘𝑅)⟶(Base‘𝑅) ∧ 𝑋:𝐷⟶(Base‘𝑅)) → (𝑁 ∘ 𝑋):𝐷⟶(Base‘𝑅))
13	6, 11, 12	syl2anc 690	. . 3 ⊢ (𝜑 → (𝑁 ∘ 𝑋):𝐷⟶(Base‘𝑅))
14		fvex 6097	. . . 4 ⊢ (Base‘𝑅) ∈ V
15		ovex 6554	. . . . 5 ⊢ (ℕ₀ ↑_𝑚 𝐼) ∈ V
16	8, 15	rabex2 4736	. . . 4 ⊢ 𝐷 ∈ V
17	14, 16	elmap 7749	. . 3 ⊢ ((𝑁 ∘ 𝑋) ∈ ((Base‘𝑅) ↑_𝑚 𝐷) ↔ (𝑁 ∘ 𝑋):𝐷⟶(Base‘𝑅))
18	13, 17	sylibr 222	. 2 ⊢ (𝜑 → (𝑁 ∘ 𝑋) ∈ ((Base‘𝑅) ↑_𝑚 𝐷))
19		psrgrp.i	. . 3 ⊢ (𝜑 → 𝐼 ∈ 𝑉)
20	7, 1, 8, 9, 19	psrbas 19147	. 2 ⊢ (𝜑 → 𝐵 = ((Base‘𝑅) ↑_𝑚 𝐷))
21	18, 20	eleqtrrd 2690	1 ⊢ (𝜑 → (𝑁 ∘ 𝑋) ∈ 𝐵)

Colors of variables: wff setvar class

Syntax hints: → wi 4 = wceq 1474 ∈ wcel 1976 {crab 2899 ^◡ccnv 5026 “ cima 5030 ∘ ccom 5031 ⟶wf 5785 –1-1-onto→wf1o 5788 ‘cfv 5789 (class class class)co 6526 ↑_𝑚 cmap 7721 Fincfn 7818 ℕcn 10869 ℕ₀cn0 11141 Basecbs 15643 Grpcgrp 17193 inv_gcminusg 17194 mPwSer cmps 19120

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1712 ax-4 1727 ax-5 1826 ax-6 1874 ax-7 1921 ax-8 1978 ax-9 1985 ax-10 2005 ax-11 2020 ax-12 2033 ax-13 2233 ax-ext 2589 ax-rep 4693 ax-sep 4703 ax-nul 4711 ax-pow 4763 ax-pr 4827 ax-un 6824 ax-cnex 9848 ax-resscn 9849 ax-1cn 9850 ax-icn 9851 ax-addcl 9852 ax-addrcl 9853 ax-mulcl 9854 ax-mulrcl 9855 ax-mulcom 9856 ax-addass 9857 ax-mulass 9858 ax-distr 9859 ax-i2m1 9860 ax-1ne0 9861 ax-1rid 9862 ax-rnegex 9863 ax-rrecex 9864 ax-cnre 9865 ax-pre-lttri 9866 ax-pre-lttrn 9867 ax-pre-ltadd 9868 ax-pre-mulgt0 9869

This theorem depends on definitions: df-bi 195 df-or 383 df-an 384 df-3or 1031 df-3an 1032 df-tru 1477 df-ex 1695 df-nf 1700 df-sb 1867 df-eu 2461 df-mo 2462 df-clab 2596 df-cleq 2602 df-clel 2605 df-nfc 2739 df-ne 2781 df-nel 2782 df-ral 2900 df-rex 2901 df-reu 2902 df-rmo 2903 df-rab 2904 df-v 3174 df-sbc 3402 df-csb 3499 df-dif 3542 df-un 3544 df-in 3546 df-ss 3553 df-pss 3555 df-nul 3874 df-if 4036 df-pw 4109 df-sn 4125 df-pr 4127 df-tp 4129 df-op 4131 df-uni 4367 df-int 4405 df-iun 4451 df-br 4578 df-opab 4638 df-mpt 4639 df-tr 4675 df-eprel 4938 df-id 4942 df-po 4948 df-so 4949 df-fr 4986 df-we 4988 df-xp 5033 df-rel 5034 df-cnv 5035 df-co 5036 df-dm 5037 df-rn 5038 df-res 5039 df-ima 5040 df-pred 5582 df-ord 5628 df-on 5629 df-lim 5630 df-suc 5631 df-iota 5753 df-fun 5791 df-fn 5792 df-f 5793 df-f1 5794 df-fo 5795 df-f1o 5796 df-fv 5797 df-riota 6488 df-ov 6529 df-oprab 6530 df-mpt2 6531 df-of 6772 df-om 6935 df-1st 7036 df-2nd 7037 df-supp 7160 df-wrecs 7271 df-recs 7332 df-rdg 7370 df-1o 7424 df-oadd 7428 df-er 7606 df-map 7723 df-en 7819 df-dom 7820 df-sdom 7821 df-fin 7822 df-fsupp 8136 df-pnf 9932 df-mnf 9933 df-xr 9934 df-ltxr 9935 df-le 9936 df-sub 10119 df-neg 10120 df-nn 10870 df-2 10928 df-3 10929 df-4 10930 df-5 10931 df-6 10932 df-7 10933 df-8 10934 df-9 10935 df-n0 11142 df-z 11213 df-uz 11522 df-fz 12155 df-struct 15645 df-ndx 15646 df-slot 15647 df-base 15648 df-plusg 15729 df-mulr 15730 df-sca 15732 df-vsca 15733 df-tset 15735 df-0g 15873 df-mgm 17013 df-sgrp 17055 df-mnd 17066 df-grp 17196 df-minusg 17197 df-psr 19125

This theorem is referenced by: psrlinv 19166 psrgrp 19167 psrneg 19169

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