| Mathbox for Glauco Siliprandi |
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| Mirrors > Home > MPE Home > Th. List > Mathboxes > n0p | Structured version Visualization version GIF version | ||
| Description: A polynomial with a nonzero coefficient is not the zero polynomial. (Contributed by Glauco Siliprandi, 5-Apr-2020.) |
| Ref | Expression |
|---|---|
| n0p | ⊢ ((𝑃 ∈ (Poly‘ℤ) ∧ 𝑁 ∈ ℕ0 ∧ ((coeff‘𝑃)‘𝑁) ≠ 0) → 𝑃 ≠ 0𝑝) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | fveq2 6841 | . . . . . . . 8 ⊢ (𝑃 = 0𝑝 → (coeff‘𝑃) = (coeff‘0𝑝)) | |
| 2 | coe0 26221 | . . . . . . . . 9 ⊢ (coeff‘0𝑝) = (ℕ0 × {0}) | |
| 3 | 2 | a1i 11 | . . . . . . . 8 ⊢ (𝑃 = 0𝑝 → (coeff‘0𝑝) = (ℕ0 × {0})) |
| 4 | 1, 3 | eqtrd 2772 | . . . . . . 7 ⊢ (𝑃 = 0𝑝 → (coeff‘𝑃) = (ℕ0 × {0})) |
| 5 | 4 | fveq1d 6843 | . . . . . 6 ⊢ (𝑃 = 0𝑝 → ((coeff‘𝑃)‘𝑁) = ((ℕ0 × {0})‘𝑁)) |
| 6 | 5 | adantl 481 | . . . . 5 ⊢ ((𝑁 ∈ ℕ0 ∧ 𝑃 = 0𝑝) → ((coeff‘𝑃)‘𝑁) = ((ℕ0 × {0})‘𝑁)) |
| 7 | id 22 | . . . . . . 7 ⊢ (𝑁 ∈ ℕ0 → 𝑁 ∈ ℕ0) | |
| 8 | c0ex 11138 | . . . . . . . 8 ⊢ 0 ∈ V | |
| 9 | 8 | fvconst2 7159 | . . . . . . 7 ⊢ (𝑁 ∈ ℕ0 → ((ℕ0 × {0})‘𝑁) = 0) |
| 10 | 7, 9 | syl 17 | . . . . . 6 ⊢ (𝑁 ∈ ℕ0 → ((ℕ0 × {0})‘𝑁) = 0) |
| 11 | 10 | adantr 480 | . . . . 5 ⊢ ((𝑁 ∈ ℕ0 ∧ 𝑃 = 0𝑝) → ((ℕ0 × {0})‘𝑁) = 0) |
| 12 | 6, 11 | eqtrd 2772 | . . . 4 ⊢ ((𝑁 ∈ ℕ0 ∧ 𝑃 = 0𝑝) → ((coeff‘𝑃)‘𝑁) = 0) |
| 13 | 12 | 3ad2antl2 1188 | . . 3 ⊢ (((𝑃 ∈ (Poly‘ℤ) ∧ 𝑁 ∈ ℕ0 ∧ ((coeff‘𝑃)‘𝑁) ≠ 0) ∧ 𝑃 = 0𝑝) → ((coeff‘𝑃)‘𝑁) = 0) |
| 14 | neneq 2939 | . . . . 5 ⊢ (((coeff‘𝑃)‘𝑁) ≠ 0 → ¬ ((coeff‘𝑃)‘𝑁) = 0) | |
| 15 | 14 | adantr 480 | . . . 4 ⊢ ((((coeff‘𝑃)‘𝑁) ≠ 0 ∧ 𝑃 = 0𝑝) → ¬ ((coeff‘𝑃)‘𝑁) = 0) |
| 16 | 15 | 3ad2antl3 1189 | . . 3 ⊢ (((𝑃 ∈ (Poly‘ℤ) ∧ 𝑁 ∈ ℕ0 ∧ ((coeff‘𝑃)‘𝑁) ≠ 0) ∧ 𝑃 = 0𝑝) → ¬ ((coeff‘𝑃)‘𝑁) = 0) |
| 17 | 13, 16 | pm2.65da 817 | . 2 ⊢ ((𝑃 ∈ (Poly‘ℤ) ∧ 𝑁 ∈ ℕ0 ∧ ((coeff‘𝑃)‘𝑁) ≠ 0) → ¬ 𝑃 = 0𝑝) |
| 18 | 17 | neqned 2940 | 1 ⊢ ((𝑃 ∈ (Poly‘ℤ) ∧ 𝑁 ∈ ℕ0 ∧ ((coeff‘𝑃)‘𝑁) ≠ 0) → 𝑃 ≠ 0𝑝) |
| Colors of variables: wff setvar class |
| Syntax hints: ¬ wn 3 → wi 4 ∧ wa 395 ∧ w3a 1087 = wceq 1542 ∈ wcel 2114 ≠ wne 2933 {csn 4568 × cxp 5629 ‘cfv 6499 0cc0 11038 ℕ0cn0 12437 ℤcz 12524 0𝑝c0p 25636 Polycply 26149 coeffccoe 26151 |
| 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 5213 ax-sep 5232 ax-nul 5242 ax-pow 5308 ax-pr 5376 ax-un 7689 ax-inf2 9562 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 ax-pre-sup 11116 |
| 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 3343 df-reu 3344 df-rab 3391 df-v 3432 df-sbc 3730 df-csb 3839 df-dif 3893 df-un 3895 df-in 3897 df-ss 3907 df-pss 3910 df-nul 4275 df-if 4468 df-pw 4544 df-sn 4569 df-pr 4571 df-op 4575 df-uni 4852 df-int 4891 df-iun 4936 df-br 5087 df-opab 5149 df-mpt 5168 df-tr 5194 df-id 5526 df-eprel 5531 df-po 5539 df-so 5540 df-fr 5584 df-se 5585 df-we 5586 df-xp 5637 df-rel 5638 df-cnv 5639 df-co 5640 df-dm 5641 df-rn 5642 df-res 5643 df-ima 5644 df-pred 6266 df-ord 6327 df-on 6328 df-lim 6329 df-suc 6330 df-iota 6455 df-fun 6501 df-fn 6502 df-f 6503 df-f1 6504 df-fo 6505 df-f1o 6506 df-fv 6507 df-isom 6508 df-riota 7324 df-ov 7370 df-oprab 7371 df-mpo 7372 df-of 7631 df-om 7818 df-1st 7942 df-2nd 7943 df-frecs 8231 df-wrecs 8262 df-recs 8311 df-rdg 8349 df-1o 8405 df-er 8643 df-map 8775 df-pm 8776 df-en 8894 df-dom 8895 df-sdom 8896 df-fin 8897 df-sup 9355 df-inf 9356 df-oi 9425 df-card 9863 df-pnf 11181 df-mnf 11182 df-xr 11183 df-ltxr 11184 df-le 11185 df-sub 11379 df-neg 11380 df-div 11808 df-nn 12175 df-2 12244 df-3 12245 df-n0 12438 df-z 12525 df-uz 12789 df-rp 12943 df-fz 13462 df-fzo 13609 df-fl 13751 df-seq 13964 df-exp 14024 df-hash 14293 df-cj 15061 df-re 15062 df-im 15063 df-sqrt 15197 df-abs 15198 df-clim 15450 df-rlim 15451 df-sum 15649 df-0p 25637 df-ply 26153 df-coe 26155 df-dgr 26156 |
| This theorem is referenced by: etransc 46711 |
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