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Theorem ismhp 22083
Description: Property of being a homogeneous polynomial. (Contributed by Steven Nguyen, 25-Aug-2023.)
Hypotheses
Ref Expression
ismhp.h 𝐻 = (𝐼 mHomP 𝑅)
ismhp.p 𝑃 = (𝐼 mPoly 𝑅)
ismhp.b 𝐵 = (Base‘𝑃)
ismhp.0 0 = (0g𝑅)
ismhp.d 𝐷 = { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin}
ismhp.n (𝜑𝑁 ∈ ℕ0)
Assertion
Ref Expression
ismhp (𝜑 → (𝑋 ∈ (𝐻𝑁) ↔ (𝑋𝐵 ∧ (𝑋 supp 0 ) ⊆ {𝑔𝐷 ∣ ((ℂflds0) Σg 𝑔) = 𝑁})))
Distinct variable groups:   ,𝐼   𝐷,𝑔   𝑔,𝑁   𝑔,
Allowed substitution hints:   𝜑(𝑔,)   𝐵(𝑔,)   𝐷()   𝑃(𝑔,)   𝑅(𝑔,)   𝐻(𝑔,)   𝐼(𝑔)   𝑁()   𝑋(𝑔,)   0 (𝑔,)

Proof of Theorem ismhp
Dummy variable 𝑓 is distinct from all other variables.
StepHypRef Expression
1 reldmmhp 22080 . . . . 5 Rel dom mHomP
2 ismhp.h . . . . 5 𝐻 = (𝐼 mHomP 𝑅)
3 id 22 . . . . 5 (𝑋 ∈ (𝐻𝑁) → 𝑋 ∈ (𝐻𝑁))
41, 2, 3elfvov1 7400 . . . 4 (𝑋 ∈ (𝐻𝑁) → 𝐼 ∈ V)
51, 2, 3elfvov2 7401 . . . 4 (𝑋 ∈ (𝐻𝑁) → 𝑅 ∈ V)
64, 5jca 511 . . 3 (𝑋 ∈ (𝐻𝑁) → (𝐼 ∈ V ∧ 𝑅 ∈ V))
76anim2i 617 . 2 ((𝜑𝑋 ∈ (𝐻𝑁)) → (𝜑 ∧ (𝐼 ∈ V ∧ 𝑅 ∈ V)))
8 reldmmpl 21943 . . . . 5 Rel dom mPoly
9 ismhp.p . . . . 5 𝑃 = (𝐼 mPoly 𝑅)
10 ismhp.b . . . . 5 𝐵 = (Base‘𝑃)
118, 9, 10elbasov 17143 . . . 4 (𝑋𝐵 → (𝐼 ∈ V ∧ 𝑅 ∈ V))
1211adantr 480 . . 3 ((𝑋𝐵 ∧ (𝑋 supp 0 ) ⊆ {𝑔𝐷 ∣ ((ℂflds0) Σg 𝑔) = 𝑁}) → (𝐼 ∈ V ∧ 𝑅 ∈ V))
1312anim2i 617 . 2 ((𝜑 ∧ (𝑋𝐵 ∧ (𝑋 supp 0 ) ⊆ {𝑔𝐷 ∣ ((ℂflds0) Σg 𝑔) = 𝑁})) → (𝜑 ∧ (𝐼 ∈ V ∧ 𝑅 ∈ V)))
14 ismhp.0 . . . . 5 0 = (0g𝑅)
15 ismhp.d . . . . 5 𝐷 = { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin}
16 simprl 770 . . . . 5 ((𝜑 ∧ (𝐼 ∈ V ∧ 𝑅 ∈ V)) → 𝐼 ∈ V)
17 simprr 772 . . . . 5 ((𝜑 ∧ (𝐼 ∈ V ∧ 𝑅 ∈ V)) → 𝑅 ∈ V)
18 ismhp.n . . . . . 6 (𝜑𝑁 ∈ ℕ0)
1918adantr 480 . . . . 5 ((𝜑 ∧ (𝐼 ∈ V ∧ 𝑅 ∈ V)) → 𝑁 ∈ ℕ0)
202, 9, 10, 14, 15, 16, 17, 19mhpval 22082 . . . 4 ((𝜑 ∧ (𝐼 ∈ V ∧ 𝑅 ∈ V)) → (𝐻𝑁) = {𝑓𝐵 ∣ (𝑓 supp 0 ) ⊆ {𝑔𝐷 ∣ ((ℂflds0) Σg 𝑔) = 𝑁}})
2120eleq2d 2822 . . 3 ((𝜑 ∧ (𝐼 ∈ V ∧ 𝑅 ∈ V)) → (𝑋 ∈ (𝐻𝑁) ↔ 𝑋 ∈ {𝑓𝐵 ∣ (𝑓 supp 0 ) ⊆ {𝑔𝐷 ∣ ((ℂflds0) Σg 𝑔) = 𝑁}}))
22 oveq1 7365 . . . . 5 (𝑓 = 𝑋 → (𝑓 supp 0 ) = (𝑋 supp 0 ))
2322sseq1d 3965 . . . 4 (𝑓 = 𝑋 → ((𝑓 supp 0 ) ⊆ {𝑔𝐷 ∣ ((ℂflds0) Σg 𝑔) = 𝑁} ↔ (𝑋 supp 0 ) ⊆ {𝑔𝐷 ∣ ((ℂflds0) Σg 𝑔) = 𝑁}))
2423elrab 3646 . . 3 (𝑋 ∈ {𝑓𝐵 ∣ (𝑓 supp 0 ) ⊆ {𝑔𝐷 ∣ ((ℂflds0) Σg 𝑔) = 𝑁}} ↔ (𝑋𝐵 ∧ (𝑋 supp 0 ) ⊆ {𝑔𝐷 ∣ ((ℂflds0) Σg 𝑔) = 𝑁}))
2521, 24bitrdi 287 . 2 ((𝜑 ∧ (𝐼 ∈ V ∧ 𝑅 ∈ V)) → (𝑋 ∈ (𝐻𝑁) ↔ (𝑋𝐵 ∧ (𝑋 supp 0 ) ⊆ {𝑔𝐷 ∣ ((ℂflds0) Σg 𝑔) = 𝑁})))
267, 13, 25pm5.21nd 801 1 (𝜑 → (𝑋 ∈ (𝐻𝑁) ↔ (𝑋𝐵 ∧ (𝑋 supp 0 ) ⊆ {𝑔𝐷 ∣ ((ℂflds0) Σg 𝑔) = 𝑁})))
Colors of variables: wff setvar class
Syntax hints:  wi 4  wb 206  wa 395   = wceq 1541  wcel 2113  {crab 3399  Vcvv 3440  wss 3901  ccnv 5623  cima 5627  cfv 6492  (class class class)co 7358   supp csupp 8102  m cmap 8763  Fincfn 8883  cn 12145  0cn0 12401  Basecbs 17136  s cress 17157  0gc0g 17359   Σg cgsu 17360  fldccnfld 21309   mPoly cmpl 21862   mHomP cmhp 22072
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 2184  ax-ext 2708  ax-rep 5224  ax-sep 5241  ax-nul 5251  ax-pow 5310  ax-pr 5377  ax-un 7680  ax-cnex 11082  ax-1cn 11084  ax-addcl 11086
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 2539  df-eu 2569  df-clab 2715  df-cleq 2728  df-clel 2811  df-nfc 2885  df-ne 2933  df-ral 3052  df-rex 3061  df-reu 3351  df-rab 3400  df-v 3442  df-sbc 3741  df-csb 3850  df-dif 3904  df-un 3906  df-in 3908  df-ss 3918  df-pss 3921  df-nul 4286  df-if 4480  df-pw 4556  df-sn 4581  df-pr 4583  df-op 4587  df-uni 4864  df-iun 4948  df-br 5099  df-opab 5161  df-mpt 5180  df-tr 5206  df-id 5519  df-eprel 5524  df-po 5532  df-so 5533  df-fr 5577  df-we 5579  df-xp 5630  df-rel 5631  df-cnv 5632  df-co 5633  df-dm 5634  df-rn 5635  df-res 5636  df-ima 5637  df-pred 6259  df-ord 6320  df-on 6321  df-lim 6322  df-suc 6323  df-iota 6448  df-fun 6494  df-fn 6495  df-f 6496  df-f1 6497  df-fo 6498  df-f1o 6499  df-fv 6500  df-ov 7361  df-oprab 7362  df-mpo 7363  df-om 7809  df-2nd 7934  df-frecs 8223  df-wrecs 8254  df-recs 8303  df-rdg 8341  df-nn 12146  df-n0 12402  df-slot 17109  df-ndx 17121  df-base 17137  df-mpl 21867  df-mhp 22079
This theorem is referenced by:  ismhp2  22084  ismhp3  22085  mhpmpl  22087  mhpdeg  22088
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