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Mirrors > Home > MPE Home > Th. List > psr1cl | Structured version Visualization version GIF version |
Description: The identity element of the ring of power series. (Contributed by Mario Carneiro, 29-Dec-2014.) |
Ref | Expression |
---|---|
psrring.s | ⊢ 𝑆 = (𝐼 mPwSer 𝑅) |
psrring.i | ⊢ (𝜑 → 𝐼 ∈ 𝑉) |
psrring.r | ⊢ (𝜑 → 𝑅 ∈ Ring) |
psr1cl.d | ⊢ 𝐷 = {𝑓 ∈ (ℕ0 ↑𝑚 𝐼) ∣ (◡𝑓 “ ℕ) ∈ Fin} |
psr1cl.z | ⊢ 0 = (0g‘𝑅) |
psr1cl.o | ⊢ 1 = (1r‘𝑅) |
psr1cl.u | ⊢ 𝑈 = (𝑥 ∈ 𝐷 ↦ if(𝑥 = (𝐼 × {0}), 1 , 0 )) |
psr1cl.b | ⊢ 𝐵 = (Base‘𝑆) |
Ref | Expression |
---|---|
psr1cl | ⊢ (𝜑 → 𝑈 ∈ 𝐵) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | psrring.r | . . . . . 6 ⊢ (𝜑 → 𝑅 ∈ Ring) | |
2 | eqid 2610 | . . . . . . . 8 ⊢ (Base‘𝑅) = (Base‘𝑅) | |
3 | psr1cl.o | . . . . . . . 8 ⊢ 1 = (1r‘𝑅) | |
4 | 2, 3 | ringidcl 18391 | . . . . . . 7 ⊢ (𝑅 ∈ Ring → 1 ∈ (Base‘𝑅)) |
5 | psr1cl.z | . . . . . . . 8 ⊢ 0 = (0g‘𝑅) | |
6 | 2, 5 | ring0cl 18392 | . . . . . . 7 ⊢ (𝑅 ∈ Ring → 0 ∈ (Base‘𝑅)) |
7 | 4, 6 | ifcld 4081 | . . . . . 6 ⊢ (𝑅 ∈ Ring → if(𝑥 = (𝐼 × {0}), 1 , 0 ) ∈ (Base‘𝑅)) |
8 | 1, 7 | syl 17 | . . . . 5 ⊢ (𝜑 → if(𝑥 = (𝐼 × {0}), 1 , 0 ) ∈ (Base‘𝑅)) |
9 | 8 | adantr 480 | . . . 4 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐷) → if(𝑥 = (𝐼 × {0}), 1 , 0 ) ∈ (Base‘𝑅)) |
10 | psr1cl.u | . . . 4 ⊢ 𝑈 = (𝑥 ∈ 𝐷 ↦ if(𝑥 = (𝐼 × {0}), 1 , 0 )) | |
11 | 9, 10 | fmptd 6292 | . . 3 ⊢ (𝜑 → 𝑈:𝐷⟶(Base‘𝑅)) |
12 | fvex 6113 | . . . 4 ⊢ (Base‘𝑅) ∈ V | |
13 | psr1cl.d | . . . . 5 ⊢ 𝐷 = {𝑓 ∈ (ℕ0 ↑𝑚 𝐼) ∣ (◡𝑓 “ ℕ) ∈ Fin} | |
14 | ovex 6577 | . . . . 5 ⊢ (ℕ0 ↑𝑚 𝐼) ∈ V | |
15 | 13, 14 | rabex2 4742 | . . . 4 ⊢ 𝐷 ∈ V |
16 | 12, 15 | elmap 7772 | . . 3 ⊢ (𝑈 ∈ ((Base‘𝑅) ↑𝑚 𝐷) ↔ 𝑈:𝐷⟶(Base‘𝑅)) |
17 | 11, 16 | sylibr 223 | . 2 ⊢ (𝜑 → 𝑈 ∈ ((Base‘𝑅) ↑𝑚 𝐷)) |
18 | psrring.s | . . 3 ⊢ 𝑆 = (𝐼 mPwSer 𝑅) | |
19 | psr1cl.b | . . 3 ⊢ 𝐵 = (Base‘𝑆) | |
20 | psrring.i | . . 3 ⊢ (𝜑 → 𝐼 ∈ 𝑉) | |
21 | 18, 2, 13, 19, 20 | psrbas 19199 | . 2 ⊢ (𝜑 → 𝐵 = ((Base‘𝑅) ↑𝑚 𝐷)) |
22 | 17, 21 | eleqtrrd 2691 | 1 ⊢ (𝜑 → 𝑈 ∈ 𝐵) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 = wceq 1475 ∈ wcel 1977 {crab 2900 ifcif 4036 {csn 4125 ↦ cmpt 4643 × cxp 5036 ◡ccnv 5037 “ cima 5041 ⟶wf 5800 ‘cfv 5804 (class class class)co 6549 ↑𝑚 cmap 7744 Fincfn 7841 0cc0 9815 ℕcn 10897 ℕ0cn0 11169 Basecbs 15695 0gc0g 15923 1rcur 18324 Ringcrg 18370 mPwSer cmps 19172 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1713 ax-4 1728 ax-5 1827 ax-6 1875 ax-7 1922 ax-8 1979 ax-9 1986 ax-10 2006 ax-11 2021 ax-12 2034 ax-13 2234 ax-ext 2590 ax-rep 4699 ax-sep 4709 ax-nul 4717 ax-pow 4769 ax-pr 4833 ax-un 6847 ax-cnex 9871 ax-resscn 9872 ax-1cn 9873 ax-icn 9874 ax-addcl 9875 ax-addrcl 9876 ax-mulcl 9877 ax-mulrcl 9878 ax-mulcom 9879 ax-addass 9880 ax-mulass 9881 ax-distr 9882 ax-i2m1 9883 ax-1ne0 9884 ax-1rid 9885 ax-rnegex 9886 ax-rrecex 9887 ax-cnre 9888 ax-pre-lttri 9889 ax-pre-lttrn 9890 ax-pre-ltadd 9891 ax-pre-mulgt0 9892 |
This theorem depends on definitions: df-bi 196 df-or 384 df-an 385 df-3or 1032 df-3an 1033 df-tru 1478 df-ex 1696 df-nf 1701 df-sb 1868 df-eu 2462 df-mo 2463 df-clab 2597 df-cleq 2603 df-clel 2606 df-nfc 2740 df-ne 2782 df-nel 2783 df-ral 2901 df-rex 2902 df-reu 2903 df-rmo 2904 df-rab 2905 df-v 3175 df-sbc 3403 df-csb 3500 df-dif 3543 df-un 3545 df-in 3547 df-ss 3554 df-pss 3556 df-nul 3875 df-if 4037 df-pw 4110 df-sn 4126 df-pr 4128 df-tp 4130 df-op 4132 df-uni 4373 df-int 4411 df-iun 4457 df-br 4584 df-opab 4644 df-mpt 4645 df-tr 4681 df-eprel 4949 df-id 4953 df-po 4959 df-so 4960 df-fr 4997 df-we 4999 df-xp 5044 df-rel 5045 df-cnv 5046 df-co 5047 df-dm 5048 df-rn 5049 df-res 5050 df-ima 5051 df-pred 5597 df-ord 5643 df-on 5644 df-lim 5645 df-suc 5646 df-iota 5768 df-fun 5806 df-fn 5807 df-f 5808 df-f1 5809 df-fo 5810 df-f1o 5811 df-fv 5812 df-riota 6511 df-ov 6552 df-oprab 6553 df-mpt2 6554 df-of 6795 df-om 6958 df-1st 7059 df-2nd 7060 df-supp 7183 df-wrecs 7294 df-recs 7355 df-rdg 7393 df-1o 7447 df-oadd 7451 df-er 7629 df-map 7746 df-en 7842 df-dom 7843 df-sdom 7844 df-fin 7845 df-fsupp 8159 df-pnf 9955 df-mnf 9956 df-xr 9957 df-ltxr 9958 df-le 9959 df-sub 10147 df-neg 10148 df-nn 10898 df-2 10956 df-3 10957 df-4 10958 df-5 10959 df-6 10960 df-7 10961 df-8 10962 df-9 10963 df-n0 11170 df-z 11255 df-uz 11564 df-fz 12198 df-struct 15697 df-ndx 15698 df-slot 15699 df-base 15700 df-sets 15701 df-plusg 15781 df-mulr 15782 df-sca 15784 df-vsca 15785 df-tset 15787 df-0g 15925 df-mgm 17065 df-sgrp 17107 df-mnd 17118 df-grp 17248 df-mgp 18313 df-ur 18325 df-ring 18372 df-psr 19177 |
This theorem is referenced by: psrlidm 19224 psrridm 19225 psrring 19232 psr1 19233 |
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