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Theorem psdmplcl 22117
Description: The derivative of a polynomial is a polynomial. (Contributed by SN, 12-Apr-2025.)
Hypotheses
Ref Expression
psdmplcl.p 𝑃 = (𝐼 mPoly 𝑅)
psdmplcl.b 𝐵 = (Base‘𝑃)
psdmplcl.r (𝜑𝑅 ∈ Mnd)
psdmplcl.x (𝜑𝑋𝐼)
psdmplcl.f (𝜑𝐹𝐵)
Assertion
Ref Expression
psdmplcl (𝜑 → (((𝐼 mPSDer 𝑅)‘𝑋)‘𝐹) ∈ 𝐵)

Proof of Theorem psdmplcl
Dummy variables 𝑏 𝑑 𝑖 𝑘 𝑦 𝑧 𝑛 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 eqid 2737 . . 3 (𝐼 mPwSer 𝑅) = (𝐼 mPwSer 𝑅)
2 eqid 2737 . . 3 (Base‘(𝐼 mPwSer 𝑅)) = (Base‘(𝐼 mPwSer 𝑅))
3 psdmplcl.r . . . 4 (𝜑𝑅 ∈ Mnd)
4 mndmgm 18678 . . . 4 (𝑅 ∈ Mnd → 𝑅 ∈ Mgm)
53, 4syl 17 . . 3 (𝜑𝑅 ∈ Mgm)
6 psdmplcl.x . . 3 (𝜑𝑋𝐼)
7 psdmplcl.p . . . . 5 𝑃 = (𝐼 mPoly 𝑅)
8 psdmplcl.b . . . . 5 𝐵 = (Base‘𝑃)
97, 1, 8, 2mplbasss 21964 . . . 4 𝐵 ⊆ (Base‘(𝐼 mPwSer 𝑅))
10 psdmplcl.f . . . 4 (𝜑𝐹𝐵)
119, 10sselid 3933 . . 3 (𝜑𝐹 ∈ (Base‘(𝐼 mPwSer 𝑅)))
121, 2, 5, 6, 11psdcl 22116 . 2 (𝜑 → (((𝐼 mPSDer 𝑅)‘𝑋)‘𝐹) ∈ (Base‘(𝐼 mPwSer 𝑅)))
13 eqid 2737 . . . 4 { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} = { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin}
141, 2, 13, 6, 11psdval 22114 . . 3 (𝜑 → (((𝐼 mPSDer 𝑅)‘𝑋)‘𝐹) = (𝑘 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} ↦ (((𝑘𝑋) + 1)(.g𝑅)(𝐹‘(𝑘f + (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0)))))))
15 ovex 7401 . . . . . . 7 (ℕ0m 𝐼) ∈ V
1615rabex 5286 . . . . . 6 { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} ∈ V
1716a1i 11 . . . . 5 (𝜑 → { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} ∈ V)
1817mptexd 7180 . . . 4 (𝜑 → (𝑘 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} ↦ (((𝑘𝑋) + 1)(.g𝑅)(𝐹‘(𝑘f + (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0)))))) ∈ V)
19 fvexd 6857 . . . 4 (𝜑 → (0g𝑅) ∈ V)
20 funmpt 6538 . . . . 5 Fun (𝑘 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} ↦ (((𝑘𝑋) + 1)(.g𝑅)(𝐹‘(𝑘f + (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0))))))
2120a1i 11 . . . 4 (𝜑 → Fun (𝑘 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} ↦ (((𝑘𝑋) + 1)(.g𝑅)(𝐹‘(𝑘f + (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0)))))))
22 simpr 484 . . . . . . . . 9 ((𝜑𝑘 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin}) → 𝑘 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin})
23 reldmmpl 21955 . . . . . . . . . . . . 13 Rel dom mPoly
247, 8, 23strov2rcl 17156 . . . . . . . . . . . 12 (𝐹𝐵𝐼 ∈ V)
2510, 24syl 17 . . . . . . . . . . 11 (𝜑𝐼 ∈ V)
2613psrbagsn 22030 . . . . . . . . . . 11 (𝐼 ∈ V → (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0)) ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin})
2725, 26syl 17 . . . . . . . . . 10 (𝜑 → (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0)) ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin})
2827adantr 480 . . . . . . . . 9 ((𝜑𝑘 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin}) → (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0)) ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin})
2913psrbagaddcl 21892 . . . . . . . . 9 ((𝑘 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} ∧ (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0)) ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin}) → (𝑘f + (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0))) ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin})
3022, 28, 29syl2anc 585 . . . . . . . 8 ((𝜑𝑘 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin}) → (𝑘f + (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0))) ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin})
31 eqidd 2738 . . . . . . . 8 (𝜑 → (𝑘 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} ↦ (𝑘f + (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0)))) = (𝑘 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} ↦ (𝑘f + (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0)))))
32 eqid 2737 . . . . . . . . . 10 (Base‘𝑅) = (Base‘𝑅)
337, 32, 8, 13, 10mplelf 21965 . . . . . . . . 9 (𝜑𝐹:{ ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin}⟶(Base‘𝑅))
3433feqmptd 6910 . . . . . . . 8 (𝜑𝐹 = (𝑧 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} ↦ (𝐹𝑧)))
35 fveq2 6842 . . . . . . . 8 (𝑧 = (𝑘f + (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0))) → (𝐹𝑧) = (𝐹‘(𝑘f + (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0)))))
3630, 31, 34, 35fmptco 7084 . . . . . . 7 (𝜑 → (𝐹 ∘ (𝑘 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} ↦ (𝑘f + (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0))))) = (𝑘 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} ↦ (𝐹‘(𝑘f + (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0))))))
37 eqid 2737 . . . . . . . . 9 (0g𝑅) = (0g𝑅)
387, 8, 37, 10mplelsfi 21962 . . . . . . . 8 (𝜑𝐹 finSupp (0g𝑅))
3930fmpttd 7069 . . . . . . . . 9 (𝜑 → (𝑘 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} ↦ (𝑘f + (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0)))):{ ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin}⟶{ ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin})
40 ovex 7401 . . . . . . . . . . . . . . 15 (𝑏f − (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0))) ∈ V
41 eqid 2737 . . . . . . . . . . . . . . 15 (𝑏 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} ↦ (𝑏f − (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0)))) = (𝑏 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} ↦ (𝑏f − (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0))))
4240, 41fnmpti 6643 . . . . . . . . . . . . . 14 (𝑏 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} ↦ (𝑏f − (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0)))) Fn { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin}
4342a1i 11 . . . . . . . . . . . . 13 (𝜑 → (𝑏 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} ↦ (𝑏f − (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0)))) Fn { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin})
44 dffn3 6682 . . . . . . . . . . . . 13 ((𝑏 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} ↦ (𝑏f − (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0)))) Fn { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} ↔ (𝑏 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} ↦ (𝑏f − (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0)))):{ ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin}⟶ran (𝑏 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} ↦ (𝑏f − (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0)))))
4543, 44sylib 218 . . . . . . . . . . . 12 (𝜑 → (𝑏 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} ↦ (𝑏f − (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0)))):{ ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin}⟶ran (𝑏 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} ↦ (𝑏f − (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0)))))
4645, 39fcod 6695 . . . . . . . . . . 11 (𝜑 → ((𝑏 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} ↦ (𝑏f − (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0)))) ∘ (𝑘 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} ↦ (𝑘f + (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0))))):{ ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin}⟶ran (𝑏 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} ↦ (𝑏f − (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0)))))
4746ffnd 6671 . . . . . . . . . 10 (𝜑 → ((𝑏 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} ↦ (𝑏f − (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0)))) ∘ (𝑘 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} ↦ (𝑘f + (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0))))) Fn { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin})
48 fnresi 6629 . . . . . . . . . . 11 ( I ↾ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin}) Fn { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin}
4948a1i 11 . . . . . . . . . 10 (𝜑 → ( I ↾ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin}) Fn { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin})
5013psrbagf 21886 . . . . . . . . . . . . . . . . 17 (𝑑 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} → 𝑑:𝐼⟶ℕ0)
5150adantl 481 . . . . . . . . . . . . . . . 16 ((𝜑𝑑 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin}) → 𝑑:𝐼⟶ℕ0)
5251ffvelcdmda 7038 . . . . . . . . . . . . . . 15 (((𝜑𝑑 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin}) ∧ 𝑖𝐼) → (𝑑𝑖) ∈ ℕ0)
5352nn0cnd 12476 . . . . . . . . . . . . . 14 (((𝜑𝑑 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin}) ∧ 𝑖𝐼) → (𝑑𝑖) ∈ ℂ)
54 ax-1cn 11096 . . . . . . . . . . . . . . . 16 1 ∈ ℂ
55 0cn 11136 . . . . . . . . . . . . . . . 16 0 ∈ ℂ
5654, 55ifcli 4529 . . . . . . . . . . . . . . 15 if(𝑖 = 𝑋, 1, 0) ∈ ℂ
5756a1i 11 . . . . . . . . . . . . . 14 (((𝜑𝑑 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin}) ∧ 𝑖𝐼) → if(𝑖 = 𝑋, 1, 0) ∈ ℂ)
5853, 57pncand 11505 . . . . . . . . . . . . 13 (((𝜑𝑑 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin}) ∧ 𝑖𝐼) → (((𝑑𝑖) + if(𝑖 = 𝑋, 1, 0)) − if(𝑖 = 𝑋, 1, 0)) = (𝑑𝑖))
5958mpteq2dva 5193 . . . . . . . . . . . 12 ((𝜑𝑑 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin}) → (𝑖𝐼 ↦ (((𝑑𝑖) + if(𝑖 = 𝑋, 1, 0)) − if(𝑖 = 𝑋, 1, 0))) = (𝑖𝐼 ↦ (𝑑𝑖)))
60 simpr 484 . . . . . . . . . . . . . . 15 ((𝜑𝑑 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin}) → 𝑑 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin})
6127adantr 480 . . . . . . . . . . . . . . 15 ((𝜑𝑑 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin}) → (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0)) ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin})
6213psrbagaddcl 21892 . . . . . . . . . . . . . . 15 ((𝑑 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} ∧ (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0)) ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin}) → (𝑑f + (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0))) ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin})
6360, 61, 62syl2anc 585 . . . . . . . . . . . . . 14 ((𝜑𝑑 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin}) → (𝑑f + (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0))) ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin})
6413psrbagf 21886 . . . . . . . . . . . . . . 15 ((𝑑f + (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0))) ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} → (𝑑f + (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0))):𝐼⟶ℕ0)
6564ffnd 6671 . . . . . . . . . . . . . 14 ((𝑑f + (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0))) ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} → (𝑑f + (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0))) Fn 𝐼)
6663, 65syl 17 . . . . . . . . . . . . 13 ((𝜑𝑑 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin}) → (𝑑f + (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0))) Fn 𝐼)
67 1ex 11140 . . . . . . . . . . . . . . . 16 1 ∈ V
68 c0ex 11138 . . . . . . . . . . . . . . . 16 0 ∈ V
6967, 68ifex 4532 . . . . . . . . . . . . . . 15 if(𝑦 = 𝑋, 1, 0) ∈ V
70 eqid 2737 . . . . . . . . . . . . . . 15 (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0)) = (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0))
7169, 70fnmpti 6643 . . . . . . . . . . . . . 14 (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0)) Fn 𝐼
7271a1i 11 . . . . . . . . . . . . 13 ((𝜑𝑑 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin}) → (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0)) Fn 𝐼)
7325adantr 480 . . . . . . . . . . . . 13 ((𝜑𝑑 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin}) → 𝐼 ∈ V)
74 inidm 4181 . . . . . . . . . . . . 13 (𝐼𝐼) = 𝐼
7550ffnd 6671 . . . . . . . . . . . . . . 15 (𝑑 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} → 𝑑 Fn 𝐼)
7675adantl 481 . . . . . . . . . . . . . 14 ((𝜑𝑑 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin}) → 𝑑 Fn 𝐼)
77 eqidd 2738 . . . . . . . . . . . . . 14 (((𝜑𝑑 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin}) ∧ 𝑖𝐼) → (𝑑𝑖) = (𝑑𝑖))
78 eqeq1 2741 . . . . . . . . . . . . . . . 16 (𝑦 = 𝑖 → (𝑦 = 𝑋𝑖 = 𝑋))
7978ifbid 4505 . . . . . . . . . . . . . . 15 (𝑦 = 𝑖 → if(𝑦 = 𝑋, 1, 0) = if(𝑖 = 𝑋, 1, 0))
80 simpr 484 . . . . . . . . . . . . . . 15 (((𝜑𝑑 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin}) ∧ 𝑖𝐼) → 𝑖𝐼)
8167, 68ifex 4532 . . . . . . . . . . . . . . . 16 if(𝑖 = 𝑋, 1, 0) ∈ V
8281a1i 11 . . . . . . . . . . . . . . 15 (((𝜑𝑑 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin}) ∧ 𝑖𝐼) → if(𝑖 = 𝑋, 1, 0) ∈ V)
8370, 79, 80, 82fvmptd3 6973 . . . . . . . . . . . . . 14 (((𝜑𝑑 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin}) ∧ 𝑖𝐼) → ((𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0))‘𝑖) = if(𝑖 = 𝑋, 1, 0))
8476, 72, 73, 73, 74, 77, 83ofval 7643 . . . . . . . . . . . . 13 (((𝜑𝑑 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin}) ∧ 𝑖𝐼) → ((𝑑f + (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0)))‘𝑖) = ((𝑑𝑖) + if(𝑖 = 𝑋, 1, 0)))
8566, 72, 73, 73, 74, 84, 83offval 7641 . . . . . . . . . . . 12 ((𝜑𝑑 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin}) → ((𝑑f + (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0))) ∘f − (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0))) = (𝑖𝐼 ↦ (((𝑑𝑖) + if(𝑖 = 𝑋, 1, 0)) − if(𝑖 = 𝑋, 1, 0))))
8651feqmptd 6910 . . . . . . . . . . . 12 ((𝜑𝑑 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin}) → 𝑑 = (𝑖𝐼 ↦ (𝑑𝑖)))
8759, 85, 863eqtr4d 2782 . . . . . . . . . . 11 ((𝜑𝑑 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin}) → ((𝑑f + (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0))) ∘f − (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0))) = 𝑑)
8830adantlr 716 . . . . . . . . . . . . . 14 (((𝜑𝑑 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin}) ∧ 𝑘 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin}) → (𝑘f + (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0))) ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin})
8988fmpttd 7069 . . . . . . . . . . . . 13 ((𝜑𝑑 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin}) → (𝑘 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} ↦ (𝑘f + (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0)))):{ ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin}⟶{ ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin})
9089, 60fvco3d 6942 . . . . . . . . . . . 12 ((𝜑𝑑 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin}) → (((𝑏 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} ↦ (𝑏f − (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0)))) ∘ (𝑘 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} ↦ (𝑘f + (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0)))))‘𝑑) = ((𝑏 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} ↦ (𝑏f − (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0))))‘((𝑘 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} ↦ (𝑘f + (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0))))‘𝑑)))
91 eqid 2737 . . . . . . . . . . . . . 14 (𝑘 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} ↦ (𝑘f + (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0)))) = (𝑘 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} ↦ (𝑘f + (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0))))
92 oveq1 7375 . . . . . . . . . . . . . 14 (𝑘 = 𝑑 → (𝑘f + (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0))) = (𝑑f + (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0))))
93 ovexd 7403 . . . . . . . . . . . . . 14 ((𝜑𝑑 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin}) → (𝑑f + (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0))) ∈ V)
9491, 92, 60, 93fvmptd3 6973 . . . . . . . . . . . . 13 ((𝜑𝑑 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin}) → ((𝑘 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} ↦ (𝑘f + (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0))))‘𝑑) = (𝑑f + (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0))))
9594fveq2d 6846 . . . . . . . . . . . 12 ((𝜑𝑑 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin}) → ((𝑏 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} ↦ (𝑏f − (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0))))‘((𝑘 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} ↦ (𝑘f + (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0))))‘𝑑)) = ((𝑏 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} ↦ (𝑏f − (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0))))‘(𝑑f + (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0)))))
96 oveq1 7375 . . . . . . . . . . . . 13 (𝑏 = (𝑑f + (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0))) → (𝑏f − (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0))) = ((𝑑f + (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0))) ∘f − (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0))))
97 ovexd 7403 . . . . . . . . . . . . 13 ((𝜑𝑑 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin}) → ((𝑑f + (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0))) ∘f − (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0))) ∈ V)
9841, 96, 63, 97fvmptd3 6973 . . . . . . . . . . . 12 ((𝜑𝑑 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin}) → ((𝑏 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} ↦ (𝑏f − (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0))))‘(𝑑f + (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0)))) = ((𝑑f + (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0))) ∘f − (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0))))
9990, 95, 983eqtrd 2776 . . . . . . . . . . 11 ((𝜑𝑑 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin}) → (((𝑏 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} ↦ (𝑏f − (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0)))) ∘ (𝑘 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} ↦ (𝑘f + (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0)))))‘𝑑) = ((𝑑f + (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0))) ∘f − (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0))))
100 fvresi 7129 . . . . . . . . . . . 12 (𝑑 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} → (( I ↾ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin})‘𝑑) = 𝑑)
101100adantl 481 . . . . . . . . . . 11 ((𝜑𝑑 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin}) → (( I ↾ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin})‘𝑑) = 𝑑)
10287, 99, 1013eqtr4d 2782 . . . . . . . . . 10 ((𝜑𝑑 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin}) → (((𝑏 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} ↦ (𝑏f − (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0)))) ∘ (𝑘 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} ↦ (𝑘f + (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0)))))‘𝑑) = (( I ↾ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin})‘𝑑))
10347, 49, 102eqfnfvd 6988 . . . . . . . . 9 (𝜑 → ((𝑏 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} ↦ (𝑏f − (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0)))) ∘ (𝑘 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} ↦ (𝑘f + (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0))))) = ( I ↾ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin}))
104 fcof1 7243 . . . . . . . . 9 (((𝑘 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} ↦ (𝑘f + (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0)))):{ ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin}⟶{ ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} ∧ ((𝑏 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} ↦ (𝑏f − (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0)))) ∘ (𝑘 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} ↦ (𝑘f + (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0))))) = ( I ↾ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin})) → (𝑘 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} ↦ (𝑘f + (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0)))):{ ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin}–1-1→{ ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin})
10539, 103, 104syl2anc 585 . . . . . . . 8 (𝜑 → (𝑘 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} ↦ (𝑘f + (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0)))):{ ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin}–1-1→{ ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin})
10638, 105, 19, 10fsuppco 9317 . . . . . . 7 (𝜑 → (𝐹 ∘ (𝑘 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} ↦ (𝑘f + (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0))))) finSupp (0g𝑅))
10736, 106eqbrtrrd 5124 . . . . . 6 (𝜑 → (𝑘 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} ↦ (𝐹‘(𝑘f + (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0))))) finSupp (0g𝑅))
108107fsuppimpd 9284 . . . . 5 (𝜑 → ((𝑘 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} ↦ (𝐹‘(𝑘f + (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0))))) supp (0g𝑅)) ∈ Fin)
109 ssidd 3959 . . . . . 6 (𝜑 → ((𝑘 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} ↦ (𝐹‘(𝑘f + (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0))))) supp (0g𝑅)) ⊆ ((𝑘 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} ↦ (𝐹‘(𝑘f + (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0))))) supp (0g𝑅)))
110 eqid 2737 . . . . . . . 8 (.g𝑅) = (.g𝑅)
11132, 110, 37mulgnn0z 19043 . . . . . . 7 ((𝑅 ∈ Mnd ∧ 𝑛 ∈ ℕ0) → (𝑛(.g𝑅)(0g𝑅)) = (0g𝑅))
1123, 111sylan 581 . . . . . 6 ((𝜑𝑛 ∈ ℕ0) → (𝑛(.g𝑅)(0g𝑅)) = (0g𝑅))
11313psrbagf 21886 . . . . . . . . 9 (𝑘 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} → 𝑘:𝐼⟶ℕ0)
114113adantl 481 . . . . . . . 8 ((𝜑𝑘 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin}) → 𝑘:𝐼⟶ℕ0)
1156adantr 480 . . . . . . . 8 ((𝜑𝑘 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin}) → 𝑋𝐼)
116114, 115ffvelcdmd 7039 . . . . . . 7 ((𝜑𝑘 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin}) → (𝑘𝑋) ∈ ℕ0)
117 peano2nn0 12453 . . . . . . 7 ((𝑘𝑋) ∈ ℕ0 → ((𝑘𝑋) + 1) ∈ ℕ0)
118116, 117syl 17 . . . . . 6 ((𝜑𝑘 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin}) → ((𝑘𝑋) + 1) ∈ ℕ0)
119 fvexd 6857 . . . . . 6 ((𝜑𝑘 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin}) → (𝐹‘(𝑘f + (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0)))) ∈ V)
120109, 112, 118, 119, 19suppssov2 8150 . . . . 5 (𝜑 → ((𝑘 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} ↦ (((𝑘𝑋) + 1)(.g𝑅)(𝐹‘(𝑘f + (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0)))))) supp (0g𝑅)) ⊆ ((𝑘 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} ↦ (𝐹‘(𝑘f + (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0))))) supp (0g𝑅)))
121108, 120ssfid 9181 . . . 4 (𝜑 → ((𝑘 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} ↦ (((𝑘𝑋) + 1)(.g𝑅)(𝐹‘(𝑘f + (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0)))))) supp (0g𝑅)) ∈ Fin)
12218, 19, 21, 121isfsuppd 9281 . . 3 (𝜑 → (𝑘 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} ↦ (((𝑘𝑋) + 1)(.g𝑅)(𝐹‘(𝑘f + (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0)))))) finSupp (0g𝑅))
12314, 122eqbrtrd 5122 . 2 (𝜑 → (((𝐼 mPSDer 𝑅)‘𝑋)‘𝐹) finSupp (0g𝑅))
1247, 1, 2, 37, 8mplelbas 21958 . 2 ((((𝐼 mPSDer 𝑅)‘𝑋)‘𝐹) ∈ 𝐵 ↔ ((((𝐼 mPSDer 𝑅)‘𝑋)‘𝐹) ∈ (Base‘(𝐼 mPwSer 𝑅)) ∧ (((𝐼 mPSDer 𝑅)‘𝑋)‘𝐹) finSupp (0g𝑅)))
12512, 123, 124sylanbrc 584 1 (𝜑 → (((𝐼 mPSDer 𝑅)‘𝑋)‘𝐹) ∈ 𝐵)
Colors of variables: wff setvar class
Syntax hints:  wi 4  wa 395   = wceq 1542  wcel 2114  {crab 3401  Vcvv 3442  ifcif 4481   class class class wbr 5100  cmpt 5181   I cid 5526  ccnv 5631  ran crn 5633  cres 5634  cima 5635  ccom 5636  Fun wfun 6494   Fn wfn 6495  wf 6496  1-1wf1 6497  cfv 6500  (class class class)co 7368  f cof 7630   supp csupp 8112  m cmap 8775  Fincfn 8895   finSupp cfsupp 9276  cc 11036  0cc0 11038  1c1 11039   + caddc 11041  cmin 11376  cn 12157  0cn0 12413  Basecbs 17148  0gc0g 17371  Mgmcmgm 18575  Mndcmnd 18671  .gcmg 19009   mPwSer cmps 21872   mPoly cmpl 21874   mPSDer cpsd 22085
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1797  ax-4 1811  ax-5 1912  ax-6 1969  ax-7 2010  ax-8 2116  ax-9 2124  ax-10 2147  ax-11 2163  ax-12 2185  ax-ext 2709  ax-rep 5226  ax-sep 5243  ax-nul 5253  ax-pow 5312  ax-pr 5379  ax-un 7690  ax-cnex 11094  ax-resscn 11095  ax-1cn 11096  ax-icn 11097  ax-addcl 11098  ax-addrcl 11099  ax-mulcl 11100  ax-mulrcl 11101  ax-mulcom 11102  ax-addass 11103  ax-mulass 11104  ax-distr 11105  ax-i2m1 11106  ax-1ne0 11107  ax-1rid 11108  ax-rnegex 11109  ax-rrecex 11110  ax-cnre 11111  ax-pre-lttri 11112  ax-pre-lttrn 11113  ax-pre-ltadd 11114  ax-pre-mulgt0 11115
This theorem depends on definitions:  df-bi 207  df-an 396  df-or 849  df-3or 1088  df-3an 1089  df-tru 1545  df-fal 1555  df-ex 1782  df-nf 1786  df-sb 2069  df-mo 2540  df-eu 2570  df-clab 2716  df-cleq 2729  df-clel 2812  df-nfc 2886  df-ne 2934  df-nel 3038  df-ral 3053  df-rex 3063  df-rmo 3352  df-reu 3353  df-rab 3402  df-v 3444  df-sbc 3743  df-csb 3852  df-dif 3906  df-un 3908  df-in 3910  df-ss 3920  df-pss 3923  df-nul 4288  df-if 4482  df-pw 4558  df-sn 4583  df-pr 4585  df-tp 4587  df-op 4589  df-uni 4866  df-iun 4950  df-br 5101  df-opab 5163  df-mpt 5182  df-tr 5208  df-id 5527  df-eprel 5532  df-po 5540  df-so 5541  df-fr 5585  df-we 5587  df-xp 5638  df-rel 5639  df-cnv 5640  df-co 5641  df-dm 5642  df-rn 5643  df-res 5644  df-ima 5645  df-pred 6267  df-ord 6328  df-on 6329  df-lim 6330  df-suc 6331  df-iota 6456  df-fun 6502  df-fn 6503  df-f 6504  df-f1 6505  df-fo 6506  df-f1o 6507  df-fv 6508  df-riota 7325  df-ov 7371  df-oprab 7372  df-mpo 7373  df-of 7632  df-om 7819  df-1st 7943  df-2nd 7944  df-supp 8113  df-frecs 8233  df-wrecs 8264  df-recs 8313  df-rdg 8351  df-1o 8407  df-er 8645  df-map 8777  df-en 8896  df-dom 8897  df-sdom 8898  df-fin 8899  df-fsupp 9277  df-pnf 11180  df-mnf 11181  df-xr 11182  df-ltxr 11183  df-le 11184  df-sub 11378  df-neg 11379  df-nn 12158  df-2 12220  df-3 12221  df-4 12222  df-5 12223  df-6 12224  df-7 12225  df-8 12226  df-9 12227  df-n0 12414  df-z 12501  df-uz 12764  df-fz 13436  df-seq 13937  df-struct 17086  df-sets 17103  df-slot 17121  df-ndx 17133  df-base 17149  df-ress 17170  df-plusg 17202  df-mulr 17203  df-sca 17205  df-vsca 17206  df-tset 17208  df-0g 17373  df-mgm 18577  df-sgrp 18656  df-mnd 18672  df-mulg 19010  df-psr 21877  df-mpl 21879  df-psd 22111
This theorem is referenced by: (None)
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