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Mirrors > Home > MPE Home > Th. List > mhpsclcl | Structured version Visualization version GIF version |
Description: A scalar (or constant) polynomial has degree 0. Compare deg1scl 25278. In other contexts, there may be an exception for the zero polynomial, but under df-mhp 21323 the zero polynomial can be any degree (see mhp0cl 21336) so there is no exception. (Contributed by SN, 25-May-2024.) |
Ref | Expression |
---|---|
mhpsclcl.h | ⊢ 𝐻 = (𝐼 mHomP 𝑅) |
mhpsclcl.p | ⊢ 𝑃 = (𝐼 mPoly 𝑅) |
mhpsclcl.a | ⊢ 𝐴 = (algSc‘𝑃) |
mhpsclcl.k | ⊢ 𝐾 = (Base‘𝑅) |
mhpsclcl.i | ⊢ (𝜑 → 𝐼 ∈ 𝑉) |
mhpsclcl.r | ⊢ (𝜑 → 𝑅 ∈ Ring) |
mhpsclcl.c | ⊢ (𝜑 → 𝐶 ∈ 𝐾) |
Ref | Expression |
---|---|
mhpsclcl | ⊢ (𝜑 → (𝐴‘𝐶) ∈ (𝐻‘0)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | mhpsclcl.p | . . . . . . 7 ⊢ 𝑃 = (𝐼 mPoly 𝑅) | |
2 | eqid 2738 | . . . . . . 7 ⊢ {ℎ ∈ (ℕ0 ↑m 𝐼) ∣ (◡ℎ “ ℕ) ∈ Fin} = {ℎ ∈ (ℕ0 ↑m 𝐼) ∣ (◡ℎ “ ℕ) ∈ Fin} | |
3 | eqid 2738 | . . . . . . 7 ⊢ (0g‘𝑅) = (0g‘𝑅) | |
4 | mhpsclcl.k | . . . . . . 7 ⊢ 𝐾 = (Base‘𝑅) | |
5 | mhpsclcl.a | . . . . . . 7 ⊢ 𝐴 = (algSc‘𝑃) | |
6 | mhpsclcl.i | . . . . . . . 8 ⊢ (𝜑 → 𝐼 ∈ 𝑉) | |
7 | 6 | adantr 481 | . . . . . . 7 ⊢ ((𝜑 ∧ 𝑑 ∈ {ℎ ∈ (ℕ0 ↑m 𝐼) ∣ (◡ℎ “ ℕ) ∈ Fin}) → 𝐼 ∈ 𝑉) |
8 | mhpsclcl.r | . . . . . . . 8 ⊢ (𝜑 → 𝑅 ∈ Ring) | |
9 | 8 | adantr 481 | . . . . . . 7 ⊢ ((𝜑 ∧ 𝑑 ∈ {ℎ ∈ (ℕ0 ↑m 𝐼) ∣ (◡ℎ “ ℕ) ∈ Fin}) → 𝑅 ∈ Ring) |
10 | mhpsclcl.c | . . . . . . . 8 ⊢ (𝜑 → 𝐶 ∈ 𝐾) | |
11 | 10 | adantr 481 | . . . . . . 7 ⊢ ((𝜑 ∧ 𝑑 ∈ {ℎ ∈ (ℕ0 ↑m 𝐼) ∣ (◡ℎ “ ℕ) ∈ Fin}) → 𝐶 ∈ 𝐾) |
12 | 1, 2, 3, 4, 5, 7, 9, 11 | mplascl 21272 | . . . . . 6 ⊢ ((𝜑 ∧ 𝑑 ∈ {ℎ ∈ (ℕ0 ↑m 𝐼) ∣ (◡ℎ “ ℕ) ∈ Fin}) → (𝐴‘𝐶) = (𝑦 ∈ {ℎ ∈ (ℕ0 ↑m 𝐼) ∣ (◡ℎ “ ℕ) ∈ Fin} ↦ if(𝑦 = (𝐼 × {0}), 𝐶, (0g‘𝑅)))) |
13 | eqeq1 2742 | . . . . . . . 8 ⊢ (𝑦 = 𝑑 → (𝑦 = (𝐼 × {0}) ↔ 𝑑 = (𝐼 × {0}))) | |
14 | 13 | ifbid 4482 | . . . . . . 7 ⊢ (𝑦 = 𝑑 → if(𝑦 = (𝐼 × {0}), 𝐶, (0g‘𝑅)) = if(𝑑 = (𝐼 × {0}), 𝐶, (0g‘𝑅))) |
15 | 14 | adantl 482 | . . . . . 6 ⊢ (((𝜑 ∧ 𝑑 ∈ {ℎ ∈ (ℕ0 ↑m 𝐼) ∣ (◡ℎ “ ℕ) ∈ Fin}) ∧ 𝑦 = 𝑑) → if(𝑦 = (𝐼 × {0}), 𝐶, (0g‘𝑅)) = if(𝑑 = (𝐼 × {0}), 𝐶, (0g‘𝑅))) |
16 | simpr 485 | . . . . . 6 ⊢ ((𝜑 ∧ 𝑑 ∈ {ℎ ∈ (ℕ0 ↑m 𝐼) ∣ (◡ℎ “ ℕ) ∈ Fin}) → 𝑑 ∈ {ℎ ∈ (ℕ0 ↑m 𝐼) ∣ (◡ℎ “ ℕ) ∈ Fin}) | |
17 | fvexd 6789 | . . . . . . . 8 ⊢ (𝜑 → (0g‘𝑅) ∈ V) | |
18 | 10, 17 | ifexd 4507 | . . . . . . 7 ⊢ (𝜑 → if(𝑑 = (𝐼 × {0}), 𝐶, (0g‘𝑅)) ∈ V) |
19 | 18 | adantr 481 | . . . . . 6 ⊢ ((𝜑 ∧ 𝑑 ∈ {ℎ ∈ (ℕ0 ↑m 𝐼) ∣ (◡ℎ “ ℕ) ∈ Fin}) → if(𝑑 = (𝐼 × {0}), 𝐶, (0g‘𝑅)) ∈ V) |
20 | 12, 15, 16, 19 | fvmptd 6882 | . . . . 5 ⊢ ((𝜑 ∧ 𝑑 ∈ {ℎ ∈ (ℕ0 ↑m 𝐼) ∣ (◡ℎ “ ℕ) ∈ Fin}) → ((𝐴‘𝐶)‘𝑑) = if(𝑑 = (𝐼 × {0}), 𝐶, (0g‘𝑅))) |
21 | 20 | neeq1d 3003 | . . . 4 ⊢ ((𝜑 ∧ 𝑑 ∈ {ℎ ∈ (ℕ0 ↑m 𝐼) ∣ (◡ℎ “ ℕ) ∈ Fin}) → (((𝐴‘𝐶)‘𝑑) ≠ (0g‘𝑅) ↔ if(𝑑 = (𝐼 × {0}), 𝐶, (0g‘𝑅)) ≠ (0g‘𝑅))) |
22 | iffalse 4468 | . . . . . 6 ⊢ (¬ 𝑑 = (𝐼 × {0}) → if(𝑑 = (𝐼 × {0}), 𝐶, (0g‘𝑅)) = (0g‘𝑅)) | |
23 | 22 | necon1ai 2971 | . . . . 5 ⊢ (if(𝑑 = (𝐼 × {0}), 𝐶, (0g‘𝑅)) ≠ (0g‘𝑅) → 𝑑 = (𝐼 × {0})) |
24 | fconstmpt 5649 | . . . . . . . 8 ⊢ (𝐼 × {0}) = (𝑘 ∈ 𝐼 ↦ 0) | |
25 | 24 | oveq2i 7286 | . . . . . . 7 ⊢ ((ℂfld ↾s ℕ0) Σg (𝐼 × {0})) = ((ℂfld ↾s ℕ0) Σg (𝑘 ∈ 𝐼 ↦ 0)) |
26 | nn0subm 20653 | . . . . . . . . 9 ⊢ ℕ0 ∈ (SubMnd‘ℂfld) | |
27 | eqid 2738 | . . . . . . . . . 10 ⊢ (ℂfld ↾s ℕ0) = (ℂfld ↾s ℕ0) | |
28 | 27 | submmnd 18452 | . . . . . . . . 9 ⊢ (ℕ0 ∈ (SubMnd‘ℂfld) → (ℂfld ↾s ℕ0) ∈ Mnd) |
29 | 26, 28 | ax-mp 5 | . . . . . . . 8 ⊢ (ℂfld ↾s ℕ0) ∈ Mnd |
30 | cnfld0 20622 | . . . . . . . . . . 11 ⊢ 0 = (0g‘ℂfld) | |
31 | 27, 30 | subm0 18454 | . . . . . . . . . 10 ⊢ (ℕ0 ∈ (SubMnd‘ℂfld) → 0 = (0g‘(ℂfld ↾s ℕ0))) |
32 | 26, 31 | ax-mp 5 | . . . . . . . . 9 ⊢ 0 = (0g‘(ℂfld ↾s ℕ0)) |
33 | 32 | gsumz 18474 | . . . . . . . 8 ⊢ (((ℂfld ↾s ℕ0) ∈ Mnd ∧ 𝐼 ∈ 𝑉) → ((ℂfld ↾s ℕ0) Σg (𝑘 ∈ 𝐼 ↦ 0)) = 0) |
34 | 29, 7, 33 | sylancr 587 | . . . . . . 7 ⊢ ((𝜑 ∧ 𝑑 ∈ {ℎ ∈ (ℕ0 ↑m 𝐼) ∣ (◡ℎ “ ℕ) ∈ Fin}) → ((ℂfld ↾s ℕ0) Σg (𝑘 ∈ 𝐼 ↦ 0)) = 0) |
35 | 25, 34 | eqtrid 2790 | . . . . . 6 ⊢ ((𝜑 ∧ 𝑑 ∈ {ℎ ∈ (ℕ0 ↑m 𝐼) ∣ (◡ℎ “ ℕ) ∈ Fin}) → ((ℂfld ↾s ℕ0) Σg (𝐼 × {0})) = 0) |
36 | oveq2 7283 | . . . . . . 7 ⊢ (𝑑 = (𝐼 × {0}) → ((ℂfld ↾s ℕ0) Σg 𝑑) = ((ℂfld ↾s ℕ0) Σg (𝐼 × {0}))) | |
37 | 36 | eqeq1d 2740 | . . . . . 6 ⊢ (𝑑 = (𝐼 × {0}) → (((ℂfld ↾s ℕ0) Σg 𝑑) = 0 ↔ ((ℂfld ↾s ℕ0) Σg (𝐼 × {0})) = 0)) |
38 | 35, 37 | syl5ibrcom 246 | . . . . 5 ⊢ ((𝜑 ∧ 𝑑 ∈ {ℎ ∈ (ℕ0 ↑m 𝐼) ∣ (◡ℎ “ ℕ) ∈ Fin}) → (𝑑 = (𝐼 × {0}) → ((ℂfld ↾s ℕ0) Σg 𝑑) = 0)) |
39 | 23, 38 | syl5 34 | . . . 4 ⊢ ((𝜑 ∧ 𝑑 ∈ {ℎ ∈ (ℕ0 ↑m 𝐼) ∣ (◡ℎ “ ℕ) ∈ Fin}) → (if(𝑑 = (𝐼 × {0}), 𝐶, (0g‘𝑅)) ≠ (0g‘𝑅) → ((ℂfld ↾s ℕ0) Σg 𝑑) = 0)) |
40 | 21, 39 | sylbid 239 | . . 3 ⊢ ((𝜑 ∧ 𝑑 ∈ {ℎ ∈ (ℕ0 ↑m 𝐼) ∣ (◡ℎ “ ℕ) ∈ Fin}) → (((𝐴‘𝐶)‘𝑑) ≠ (0g‘𝑅) → ((ℂfld ↾s ℕ0) Σg 𝑑) = 0)) |
41 | 40 | ralrimiva 3103 | . 2 ⊢ (𝜑 → ∀𝑑 ∈ {ℎ ∈ (ℕ0 ↑m 𝐼) ∣ (◡ℎ “ ℕ) ∈ Fin} (((𝐴‘𝐶)‘𝑑) ≠ (0g‘𝑅) → ((ℂfld ↾s ℕ0) Σg 𝑑) = 0)) |
42 | mhpsclcl.h | . . 3 ⊢ 𝐻 = (𝐼 mHomP 𝑅) | |
43 | eqid 2738 | . . 3 ⊢ (Base‘𝑃) = (Base‘𝑃) | |
44 | 0nn0 12248 | . . . 4 ⊢ 0 ∈ ℕ0 | |
45 | 44 | a1i 11 | . . 3 ⊢ (𝜑 → 0 ∈ ℕ0) |
46 | 1, 43, 4, 5, 6, 8 | mplasclf 21273 | . . . 4 ⊢ (𝜑 → 𝐴:𝐾⟶(Base‘𝑃)) |
47 | 46, 10 | ffvelrnd 6962 | . . 3 ⊢ (𝜑 → (𝐴‘𝐶) ∈ (Base‘𝑃)) |
48 | 42, 1, 43, 3, 2, 6, 8, 45, 47 | ismhp3 21333 | . 2 ⊢ (𝜑 → ((𝐴‘𝐶) ∈ (𝐻‘0) ↔ ∀𝑑 ∈ {ℎ ∈ (ℕ0 ↑m 𝐼) ∣ (◡ℎ “ ℕ) ∈ Fin} (((𝐴‘𝐶)‘𝑑) ≠ (0g‘𝑅) → ((ℂfld ↾s ℕ0) Σg 𝑑) = 0))) |
49 | 41, 48 | mpbird 256 | 1 ⊢ (𝜑 → (𝐴‘𝐶) ∈ (𝐻‘0)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 396 = wceq 1539 ∈ wcel 2106 ≠ wne 2943 ∀wral 3064 {crab 3068 Vcvv 3432 ifcif 4459 {csn 4561 ↦ cmpt 5157 × cxp 5587 ◡ccnv 5588 “ cima 5592 ‘cfv 6433 (class class class)co 7275 ↑m cmap 8615 Fincfn 8733 0cc0 10871 ℕcn 11973 ℕ0cn0 12233 Basecbs 16912 ↾s cress 16941 0gc0g 17150 Σg cgsu 17151 Mndcmnd 18385 SubMndcsubmnd 18429 Ringcrg 19783 ℂfldccnfld 20597 algSccascl 21059 mPoly cmpl 21109 mHomP cmhp 21319 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1798 ax-4 1812 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 2709 ax-rep 5209 ax-sep 5223 ax-nul 5230 ax-pow 5288 ax-pr 5352 ax-un 7588 ax-cnex 10927 ax-resscn 10928 ax-1cn 10929 ax-icn 10930 ax-addcl 10931 ax-addrcl 10932 ax-mulcl 10933 ax-mulrcl 10934 ax-mulcom 10935 ax-addass 10936 ax-mulass 10937 ax-distr 10938 ax-i2m1 10939 ax-1ne0 10940 ax-1rid 10941 ax-rnegex 10942 ax-rrecex 10943 ax-cnre 10944 ax-pre-lttri 10945 ax-pre-lttrn 10946 ax-pre-ltadd 10947 ax-pre-mulgt0 10948 ax-addf 10950 ax-mulf 10951 |
This theorem depends on definitions: df-bi 206 df-an 397 df-or 845 df-3or 1087 df-3an 1088 df-tru 1542 df-fal 1552 df-ex 1783 df-nf 1787 df-sb 2068 df-mo 2540 df-eu 2569 df-clab 2716 df-cleq 2730 df-clel 2816 df-nfc 2889 df-ne 2944 df-nel 3050 df-ral 3069 df-rex 3070 df-rmo 3071 df-reu 3072 df-rab 3073 df-v 3434 df-sbc 3717 df-csb 3833 df-dif 3890 df-un 3892 df-in 3894 df-ss 3904 df-pss 3906 df-nul 4257 df-if 4460 df-pw 4535 df-sn 4562 df-pr 4564 df-tp 4566 df-op 4568 df-uni 4840 df-int 4880 df-iun 4926 df-iin 4927 df-br 5075 df-opab 5137 df-mpt 5158 df-tr 5192 df-id 5489 df-eprel 5495 df-po 5503 df-so 5504 df-fr 5544 df-se 5545 df-we 5546 df-xp 5595 df-rel 5596 df-cnv 5597 df-co 5598 df-dm 5599 df-rn 5600 df-res 5601 df-ima 5602 df-pred 6202 df-ord 6269 df-on 6270 df-lim 6271 df-suc 6272 df-iota 6391 df-fun 6435 df-fn 6436 df-f 6437 df-f1 6438 df-fo 6439 df-f1o 6440 df-fv 6441 df-isom 6442 df-riota 7232 df-ov 7278 df-oprab 7279 df-mpo 7280 df-of 7533 df-ofr 7534 df-om 7713 df-1st 7831 df-2nd 7832 df-supp 7978 df-frecs 8097 df-wrecs 8128 df-recs 8202 df-rdg 8241 df-1o 8297 df-er 8498 df-map 8617 df-pm 8618 df-ixp 8686 df-en 8734 df-dom 8735 df-sdom 8736 df-fin 8737 df-fsupp 9129 df-oi 9269 df-card 9697 df-pnf 11011 df-mnf 11012 df-xr 11013 df-ltxr 11014 df-le 11015 df-sub 11207 df-neg 11208 df-nn 11974 df-2 12036 df-3 12037 df-4 12038 df-5 12039 df-6 12040 df-7 12041 df-8 12042 df-9 12043 df-n0 12234 df-z 12320 df-dec 12438 df-uz 12583 df-fz 13240 df-fzo 13383 df-seq 13722 df-hash 14045 df-struct 16848 df-sets 16865 df-slot 16883 df-ndx 16895 df-base 16913 df-ress 16942 df-plusg 16975 df-mulr 16976 df-starv 16977 df-sca 16978 df-vsca 16979 df-tset 16981 df-ple 16982 df-ds 16984 df-unif 16985 df-0g 17152 df-gsum 17153 df-mre 17295 df-mrc 17296 df-acs 17298 df-mgm 18326 df-sgrp 18375 df-mnd 18386 df-mhm 18430 df-submnd 18431 df-grp 18580 df-minusg 18581 df-sbg 18582 df-mulg 18701 df-subg 18752 df-ghm 18832 df-cntz 18923 df-cmn 19388 df-abl 19389 df-mgp 19721 df-ur 19738 df-ring 19785 df-cring 19786 df-subrg 20022 df-lmod 20125 df-lss 20194 df-cnfld 20598 df-ascl 21062 df-psr 21112 df-mpl 21114 df-mhp 21323 |
This theorem is referenced by: mhppwdeg 21340 |
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