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Mirrors > Home > MPE Home > Th. List > ismhp3 | Structured version Visualization version GIF version |
Description: A polynomial is homogeneous iff the degree of every nonzero term is the same. (Contributed by SN, 22-Jul-2024.) |
Ref | Expression |
---|---|
mhpfval.h | ⊢ 𝐻 = (𝐼 mHomP 𝑅) |
mhpfval.p | ⊢ 𝑃 = (𝐼 mPoly 𝑅) |
mhpfval.b | ⊢ 𝐵 = (Base‘𝑃) |
mhpfval.0 | ⊢ 0 = (0g‘𝑅) |
mhpfval.d | ⊢ 𝐷 = {ℎ ∈ (ℕ0 ↑m 𝐼) ∣ (◡ℎ “ ℕ) ∈ Fin} |
mhpfval.i | ⊢ (𝜑 → 𝐼 ∈ 𝑉) |
mhpfval.r | ⊢ (𝜑 → 𝑅 ∈ 𝑊) |
mhpval.n | ⊢ (𝜑 → 𝑁 ∈ ℕ0) |
ismhp2.1 | ⊢ (𝜑 → 𝑋 ∈ 𝐵) |
Ref | Expression |
---|---|
ismhp3 | ⊢ (𝜑 → (𝑋 ∈ (𝐻‘𝑁) ↔ ∀𝑑 ∈ 𝐷 ((𝑋‘𝑑) ≠ 0 → ((ℂfld ↾s ℕ0) Σg 𝑑) = 𝑁))) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | mhpfval.h | . . 3 ⊢ 𝐻 = (𝐼 mHomP 𝑅) | |
2 | mhpfval.p | . . 3 ⊢ 𝑃 = (𝐼 mPoly 𝑅) | |
3 | mhpfval.b | . . 3 ⊢ 𝐵 = (Base‘𝑃) | |
4 | mhpfval.0 | . . 3 ⊢ 0 = (0g‘𝑅) | |
5 | mhpfval.d | . . 3 ⊢ 𝐷 = {ℎ ∈ (ℕ0 ↑m 𝐼) ∣ (◡ℎ “ ℕ) ∈ Fin} | |
6 | mhpfval.i | . . 3 ⊢ (𝜑 → 𝐼 ∈ 𝑉) | |
7 | mhpfval.r | . . 3 ⊢ (𝜑 → 𝑅 ∈ 𝑊) | |
8 | mhpval.n | . . 3 ⊢ (𝜑 → 𝑁 ∈ ℕ0) | |
9 | 1, 2, 3, 4, 5, 6, 7, 8 | ismhp 21241 | . 2 ⊢ (𝜑 → (𝑋 ∈ (𝐻‘𝑁) ↔ (𝑋 ∈ 𝐵 ∧ (𝑋 supp 0 ) ⊆ {𝑔 ∈ 𝐷 ∣ ((ℂfld ↾s ℕ0) Σg 𝑔) = 𝑁}))) |
10 | ismhp2.1 | . . 3 ⊢ (𝜑 → 𝑋 ∈ 𝐵) | |
11 | 10 | biantrurd 532 | . 2 ⊢ (𝜑 → ((𝑋 supp 0 ) ⊆ {𝑔 ∈ 𝐷 ∣ ((ℂfld ↾s ℕ0) Σg 𝑔) = 𝑁} ↔ (𝑋 ∈ 𝐵 ∧ (𝑋 supp 0 ) ⊆ {𝑔 ∈ 𝐷 ∣ ((ℂfld ↾s ℕ0) Σg 𝑔) = 𝑁}))) |
12 | eqid 2738 | . . . . . . . . 9 ⊢ (Base‘𝑅) = (Base‘𝑅) | |
13 | 2, 12, 3, 5, 10 | mplelf 21114 | . . . . . . . 8 ⊢ (𝜑 → 𝑋:𝐷⟶(Base‘𝑅)) |
14 | 13 | ffnd 6585 | . . . . . . 7 ⊢ (𝜑 → 𝑋 Fn 𝐷) |
15 | 4 | fvexi 6770 | . . . . . . . 8 ⊢ 0 ∈ V |
16 | 15 | a1i 11 | . . . . . . 7 ⊢ (𝜑 → 0 ∈ V) |
17 | elsuppfng 7957 | . . . . . . 7 ⊢ ((𝑋 Fn 𝐷 ∧ 𝑋 ∈ 𝐵 ∧ 0 ∈ V) → (𝑑 ∈ (𝑋 supp 0 ) ↔ (𝑑 ∈ 𝐷 ∧ (𝑋‘𝑑) ≠ 0 ))) | |
18 | 14, 10, 16, 17 | syl3anc 1369 | . . . . . 6 ⊢ (𝜑 → (𝑑 ∈ (𝑋 supp 0 ) ↔ (𝑑 ∈ 𝐷 ∧ (𝑋‘𝑑) ≠ 0 ))) |
19 | oveq2 7263 | . . . . . . . . 9 ⊢ (𝑔 = 𝑑 → ((ℂfld ↾s ℕ0) Σg 𝑔) = ((ℂfld ↾s ℕ0) Σg 𝑑)) | |
20 | 19 | eqeq1d 2740 | . . . . . . . 8 ⊢ (𝑔 = 𝑑 → (((ℂfld ↾s ℕ0) Σg 𝑔) = 𝑁 ↔ ((ℂfld ↾s ℕ0) Σg 𝑑) = 𝑁)) |
21 | 20 | elrab 3617 | . . . . . . 7 ⊢ (𝑑 ∈ {𝑔 ∈ 𝐷 ∣ ((ℂfld ↾s ℕ0) Σg 𝑔) = 𝑁} ↔ (𝑑 ∈ 𝐷 ∧ ((ℂfld ↾s ℕ0) Σg 𝑑) = 𝑁)) |
22 | 21 | a1i 11 | . . . . . 6 ⊢ (𝜑 → (𝑑 ∈ {𝑔 ∈ 𝐷 ∣ ((ℂfld ↾s ℕ0) Σg 𝑔) = 𝑁} ↔ (𝑑 ∈ 𝐷 ∧ ((ℂfld ↾s ℕ0) Σg 𝑑) = 𝑁))) |
23 | 18, 22 | imbi12d 344 | . . . . 5 ⊢ (𝜑 → ((𝑑 ∈ (𝑋 supp 0 ) → 𝑑 ∈ {𝑔 ∈ 𝐷 ∣ ((ℂfld ↾s ℕ0) Σg 𝑔) = 𝑁}) ↔ ((𝑑 ∈ 𝐷 ∧ (𝑋‘𝑑) ≠ 0 ) → (𝑑 ∈ 𝐷 ∧ ((ℂfld ↾s ℕ0) Σg 𝑑) = 𝑁)))) |
24 | imdistan 567 | . . . . 5 ⊢ ((𝑑 ∈ 𝐷 → ((𝑋‘𝑑) ≠ 0 → ((ℂfld ↾s ℕ0) Σg 𝑑) = 𝑁)) ↔ ((𝑑 ∈ 𝐷 ∧ (𝑋‘𝑑) ≠ 0 ) → (𝑑 ∈ 𝐷 ∧ ((ℂfld ↾s ℕ0) Σg 𝑑) = 𝑁))) | |
25 | 23, 24 | bitr4di 288 | . . . 4 ⊢ (𝜑 → ((𝑑 ∈ (𝑋 supp 0 ) → 𝑑 ∈ {𝑔 ∈ 𝐷 ∣ ((ℂfld ↾s ℕ0) Σg 𝑔) = 𝑁}) ↔ (𝑑 ∈ 𝐷 → ((𝑋‘𝑑) ≠ 0 → ((ℂfld ↾s ℕ0) Σg 𝑑) = 𝑁)))) |
26 | 25 | albidv 1924 | . . 3 ⊢ (𝜑 → (∀𝑑(𝑑 ∈ (𝑋 supp 0 ) → 𝑑 ∈ {𝑔 ∈ 𝐷 ∣ ((ℂfld ↾s ℕ0) Σg 𝑔) = 𝑁}) ↔ ∀𝑑(𝑑 ∈ 𝐷 → ((𝑋‘𝑑) ≠ 0 → ((ℂfld ↾s ℕ0) Σg 𝑑) = 𝑁)))) |
27 | dfss2 3903 | . . 3 ⊢ ((𝑋 supp 0 ) ⊆ {𝑔 ∈ 𝐷 ∣ ((ℂfld ↾s ℕ0) Σg 𝑔) = 𝑁} ↔ ∀𝑑(𝑑 ∈ (𝑋 supp 0 ) → 𝑑 ∈ {𝑔 ∈ 𝐷 ∣ ((ℂfld ↾s ℕ0) Σg 𝑔) = 𝑁})) | |
28 | df-ral 3068 | . . 3 ⊢ (∀𝑑 ∈ 𝐷 ((𝑋‘𝑑) ≠ 0 → ((ℂfld ↾s ℕ0) Σg 𝑑) = 𝑁) ↔ ∀𝑑(𝑑 ∈ 𝐷 → ((𝑋‘𝑑) ≠ 0 → ((ℂfld ↾s ℕ0) Σg 𝑑) = 𝑁))) | |
29 | 26, 27, 28 | 3bitr4g 313 | . 2 ⊢ (𝜑 → ((𝑋 supp 0 ) ⊆ {𝑔 ∈ 𝐷 ∣ ((ℂfld ↾s ℕ0) Σg 𝑔) = 𝑁} ↔ ∀𝑑 ∈ 𝐷 ((𝑋‘𝑑) ≠ 0 → ((ℂfld ↾s ℕ0) Σg 𝑑) = 𝑁))) |
30 | 9, 11, 29 | 3bitr2d 306 | 1 ⊢ (𝜑 → (𝑋 ∈ (𝐻‘𝑁) ↔ ∀𝑑 ∈ 𝐷 ((𝑋‘𝑑) ≠ 0 → ((ℂfld ↾s ℕ0) Σg 𝑑) = 𝑁))) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 205 ∧ wa 395 ∀wal 1537 = wceq 1539 ∈ wcel 2108 ≠ wne 2942 ∀wral 3063 {crab 3067 Vcvv 3422 ⊆ wss 3883 ◡ccnv 5579 “ cima 5583 Fn wfn 6413 ‘cfv 6418 (class class class)co 7255 supp csupp 7948 ↑m cmap 8573 Fincfn 8691 ℕcn 11903 ℕ0cn0 12163 Basecbs 16840 ↾s cress 16867 0gc0g 17067 Σg cgsu 17068 ℂfldccnfld 20510 mPoly cmpl 21019 mHomP cmhp 21229 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1799 ax-4 1813 ax-5 1914 ax-6 1972 ax-7 2012 ax-8 2110 ax-9 2118 ax-10 2139 ax-11 2156 ax-12 2173 ax-ext 2709 ax-rep 5205 ax-sep 5218 ax-nul 5225 ax-pow 5283 ax-pr 5347 ax-un 7566 ax-cnex 10858 ax-resscn 10859 ax-1cn 10860 ax-icn 10861 ax-addcl 10862 ax-addrcl 10863 ax-mulcl 10864 ax-mulrcl 10865 ax-mulcom 10866 ax-addass 10867 ax-mulass 10868 ax-distr 10869 ax-i2m1 10870 ax-1ne0 10871 ax-1rid 10872 ax-rnegex 10873 ax-rrecex 10874 ax-cnre 10875 ax-pre-lttri 10876 ax-pre-lttrn 10877 ax-pre-ltadd 10878 ax-pre-mulgt0 10879 |
This theorem depends on definitions: df-bi 206 df-an 396 df-or 844 df-3or 1086 df-3an 1087 df-tru 1542 df-fal 1552 df-ex 1784 df-nf 1788 df-sb 2069 df-mo 2540 df-eu 2569 df-clab 2716 df-cleq 2730 df-clel 2817 df-nfc 2888 df-ne 2943 df-nel 3049 df-ral 3068 df-rex 3069 df-reu 3070 df-rab 3072 df-v 3424 df-sbc 3712 df-csb 3829 df-dif 3886 df-un 3888 df-in 3890 df-ss 3900 df-pss 3902 df-nul 4254 df-if 4457 df-pw 4532 df-sn 4559 df-pr 4561 df-tp 4563 df-op 4565 df-uni 4837 df-iun 4923 df-br 5071 df-opab 5133 df-mpt 5154 df-tr 5188 df-id 5480 df-eprel 5486 df-po 5494 df-so 5495 df-fr 5535 df-we 5537 df-xp 5586 df-rel 5587 df-cnv 5588 df-co 5589 df-dm 5590 df-rn 5591 df-res 5592 df-ima 5593 df-pred 6191 df-ord 6254 df-on 6255 df-lim 6256 df-suc 6257 df-iota 6376 df-fun 6420 df-fn 6421 df-f 6422 df-f1 6423 df-fo 6424 df-f1o 6425 df-fv 6426 df-riota 7212 df-ov 7258 df-oprab 7259 df-mpo 7260 df-of 7511 df-om 7688 df-1st 7804 df-2nd 7805 df-supp 7949 df-frecs 8068 df-wrecs 8099 df-recs 8173 df-rdg 8212 df-1o 8267 df-er 8456 df-map 8575 df-en 8692 df-dom 8693 df-sdom 8694 df-fin 8695 df-fsupp 9059 df-pnf 10942 df-mnf 10943 df-xr 10944 df-ltxr 10945 df-le 10946 df-sub 11137 df-neg 11138 df-nn 11904 df-2 11966 df-3 11967 df-4 11968 df-5 11969 df-6 11970 df-7 11971 df-8 11972 df-9 11973 df-n0 12164 df-z 12250 df-uz 12512 df-fz 13169 df-struct 16776 df-sets 16793 df-slot 16811 df-ndx 16823 df-base 16841 df-ress 16868 df-plusg 16901 df-mulr 16902 df-sca 16904 df-vsca 16905 df-tset 16907 df-psr 21022 df-mpl 21024 df-mhp 21233 |
This theorem is referenced by: mhpsclcl 21247 mhpvarcl 21248 mhpmulcl 21249 |
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