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Mirrors > Home > MPE Home > Th. List > coe1fv | Structured version Visualization version GIF version |
Description: Value of an evaluated coefficient in a polynomial coefficient vector. (Contributed by Stefan O'Rear, 21-Mar-2015.) |
Ref | Expression |
---|---|
coe1fval.a | ⊢ 𝐴 = (coe1‘𝐹) |
Ref | Expression |
---|---|
coe1fv | ⊢ ((𝐹 ∈ 𝑉 ∧ 𝑁 ∈ ℕ0) → (𝐴‘𝑁) = (𝐹‘(1o × {𝑁}))) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | coe1fval.a | . . . 4 ⊢ 𝐴 = (coe1‘𝐹) | |
2 | 1 | coe1fval 20980 | . . 3 ⊢ (𝐹 ∈ 𝑉 → 𝐴 = (𝑛 ∈ ℕ0 ↦ (𝐹‘(1o × {𝑛})))) |
3 | 2 | fveq1d 6676 | . 2 ⊢ (𝐹 ∈ 𝑉 → (𝐴‘𝑁) = ((𝑛 ∈ ℕ0 ↦ (𝐹‘(1o × {𝑛})))‘𝑁)) |
4 | sneq 4526 | . . . . 5 ⊢ (𝑛 = 𝑁 → {𝑛} = {𝑁}) | |
5 | 4 | xpeq2d 5555 | . . . 4 ⊢ (𝑛 = 𝑁 → (1o × {𝑛}) = (1o × {𝑁})) |
6 | 5 | fveq2d 6678 | . . 3 ⊢ (𝑛 = 𝑁 → (𝐹‘(1o × {𝑛})) = (𝐹‘(1o × {𝑁}))) |
7 | eqid 2738 | . . 3 ⊢ (𝑛 ∈ ℕ0 ↦ (𝐹‘(1o × {𝑛}))) = (𝑛 ∈ ℕ0 ↦ (𝐹‘(1o × {𝑛}))) | |
8 | fvex 6687 | . . 3 ⊢ (𝐹‘(1o × {𝑁})) ∈ V | |
9 | 6, 7, 8 | fvmpt 6775 | . 2 ⊢ (𝑁 ∈ ℕ0 → ((𝑛 ∈ ℕ0 ↦ (𝐹‘(1o × {𝑛})))‘𝑁) = (𝐹‘(1o × {𝑁}))) |
10 | 3, 9 | sylan9eq 2793 | 1 ⊢ ((𝐹 ∈ 𝑉 ∧ 𝑁 ∈ ℕ0) → (𝐴‘𝑁) = (𝐹‘(1o × {𝑁}))) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 399 = wceq 1542 ∈ wcel 2114 {csn 4516 ↦ cmpt 5110 × cxp 5523 ‘cfv 6339 1oc1o 8124 ℕ0cn0 11976 coe1cco1 20953 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1802 ax-4 1816 ax-5 1917 ax-6 1975 ax-7 2020 ax-8 2116 ax-9 2124 ax-10 2145 ax-11 2162 ax-12 2179 ax-ext 2710 ax-rep 5154 ax-sep 5167 ax-nul 5174 ax-pr 5296 ax-un 7479 ax-cnex 10671 ax-1cn 10673 ax-addcl 10675 |
This theorem depends on definitions: df-bi 210 df-an 400 df-or 847 df-3or 1089 df-3an 1090 df-tru 1545 df-fal 1555 df-ex 1787 df-nf 1791 df-sb 2075 df-mo 2540 df-eu 2570 df-clab 2717 df-cleq 2730 df-clel 2811 df-nfc 2881 df-ne 2935 df-ral 3058 df-rex 3059 df-reu 3060 df-rab 3062 df-v 3400 df-sbc 3681 df-csb 3791 df-dif 3846 df-un 3848 df-in 3850 df-ss 3860 df-pss 3862 df-nul 4212 df-if 4415 df-pw 4490 df-sn 4517 df-pr 4519 df-tp 4521 df-op 4523 df-uni 4797 df-iun 4883 df-br 5031 df-opab 5093 df-mpt 5111 df-tr 5137 df-id 5429 df-eprel 5434 df-po 5442 df-so 5443 df-fr 5483 df-we 5485 df-xp 5531 df-rel 5532 df-cnv 5533 df-co 5534 df-dm 5535 df-rn 5536 df-res 5537 df-ima 5538 df-pred 6129 df-ord 6175 df-on 6176 df-lim 6177 df-suc 6178 df-iota 6297 df-fun 6341 df-fn 6342 df-f 6343 df-f1 6344 df-fo 6345 df-f1o 6346 df-fv 6347 df-ov 7173 df-om 7600 df-wrecs 7976 df-recs 8037 df-rdg 8075 df-nn 11717 df-n0 11977 df-coe1 20958 |
This theorem is referenced by: fvcoe1 20982 coe1mul2 21044 deg1le0 24864 |
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