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| Mirrors > Home > MPE Home > Th. List > tdeglem3 | Structured version Visualization version GIF version | ||
| Description: Additivity of the total degree helper function. (Contributed by Stefan O'Rear, 26-Mar-2015.) (Proof shortened by AV, 27-Jul-2019.) Remove a sethood antecedent. (Revised by SN, 7-Aug-2024.) |
| Ref | Expression |
|---|---|
| tdeglem.a | ⊢ 𝐴 = {𝑚 ∈ (ℕ0 ↑m 𝐼) ∣ (◡𝑚 “ ℕ) ∈ Fin} |
| tdeglem.h | ⊢ 𝐻 = (ℎ ∈ 𝐴 ↦ (ℂfld Σg ℎ)) |
| Ref | Expression |
|---|---|
| tdeglem3 | ⊢ ((𝑋 ∈ 𝐴 ∧ 𝑌 ∈ 𝐴) → (𝐻‘(𝑋 ∘f + 𝑌)) = ((𝐻‘𝑋) + (𝐻‘𝑌))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | cnfldbas 21589 | . . 3 ⊢ ℂ = (Base‘ℂfld) | |
| 2 | cnfld0 21609 | . . 3 ⊢ 0 = (0g‘ℂfld) | |
| 3 | cnfldadd 21591 | . . 3 ⊢ + = (+g‘ℂfld) | |
| 4 | cnring 21607 | . . . 4 ⊢ ℂfld ∈ Ring | |
| 5 | ringcmn 20423 | . . . 4 ⊢ (ℂfld ∈ Ring → ℂfld ∈ CMnd) | |
| 6 | 4, 5 | mp1i 14 | . . 3 ⊢ ((𝑋 ∈ 𝐴 ∧ 𝑌 ∈ 𝐴) → ℂfld ∈ CMnd) |
| 7 | simpl 488 | . . . 4 ⊢ ((𝑋 ∈ 𝐴 ∧ 𝑌 ∈ 𝐴) → 𝑋 ∈ 𝐴) | |
| 8 | tdeglem.a | . . . . . . . 8 ⊢ 𝐴 = {𝑚 ∈ (ℕ0 ↑m 𝐼) ∣ (◡𝑚 “ ℕ) ∈ Fin} | |
| 9 | 8 | psrbagf 22133 | . . . . . . 7 ⊢ (𝑋 ∈ 𝐴 → 𝑋:𝐼⟶ℕ0) |
| 10 | nn0sscn 12533 | . . . . . . 7 ⊢ ℕ0 ⊆ ℂ | |
| 11 | fss 6719 | . . . . . . 7 ⊢ ((𝑋:𝐼⟶ℕ0 ∧ ℕ0 ⊆ ℂ) → 𝑋:𝐼⟶ℂ) | |
| 12 | 9, 10, 11 | sylancl 598 | . . . . . 6 ⊢ (𝑋 ∈ 𝐴 → 𝑋:𝐼⟶ℂ) |
| 13 | 12 | adantr 486 | . . . . 5 ⊢ ((𝑋 ∈ 𝐴 ∧ 𝑌 ∈ 𝐴) → 𝑋:𝐼⟶ℂ) |
| 14 | 13 | ffnd 6703 | . . . 4 ⊢ ((𝑋 ∈ 𝐴 ∧ 𝑌 ∈ 𝐴) → 𝑋 Fn 𝐼) |
| 15 | 7, 14 | fndmexd 7901 | . . 3 ⊢ ((𝑋 ∈ 𝐴 ∧ 𝑌 ∈ 𝐴) → 𝐼 ∈ V) |
| 16 | 8 | psrbagf 22133 | . . . . 5 ⊢ (𝑌 ∈ 𝐴 → 𝑌:𝐼⟶ℕ0) |
| 17 | fss 6719 | . . . . 5 ⊢ ((𝑌:𝐼⟶ℕ0 ∧ ℕ0 ⊆ ℂ) → 𝑌:𝐼⟶ℂ) | |
| 18 | 16, 10, 17 | sylancl 598 | . . . 4 ⊢ (𝑌 ∈ 𝐴 → 𝑌:𝐼⟶ℂ) |
| 19 | 18 | adantl 487 | . . 3 ⊢ ((𝑋 ∈ 𝐴 ∧ 𝑌 ∈ 𝐴) → 𝑌:𝐼⟶ℂ) |
| 20 | 8 | psrbagfsupp 22134 | . . . 4 ⊢ (𝑋 ∈ 𝐴 → 𝑋 finSupp 0) |
| 21 | 20 | adantr 486 | . . 3 ⊢ ((𝑋 ∈ 𝐴 ∧ 𝑌 ∈ 𝐴) → 𝑋 finSupp 0) |
| 22 | 8 | psrbagfsupp 22134 | . . . 4 ⊢ (𝑌 ∈ 𝐴 → 𝑌 finSupp 0) |
| 23 | 22 | adantl 487 | . . 3 ⊢ ((𝑋 ∈ 𝐴 ∧ 𝑌 ∈ 𝐴) → 𝑌 finSupp 0) |
| 24 | 1, 2, 3, 6, 15, 13, 19, 21, 23 | gsumadd 20050 | . 2 ⊢ ((𝑋 ∈ 𝐴 ∧ 𝑌 ∈ 𝐴) → (ℂfld Σg (𝑋 ∘f + 𝑌)) = ((ℂfld Σg 𝑋) + (ℂfld Σg 𝑌))) |
| 25 | 8 | psrbagaddcl 22139 | . . 3 ⊢ ((𝑋 ∈ 𝐴 ∧ 𝑌 ∈ 𝐴) → (𝑋 ∘f + 𝑌) ∈ 𝐴) |
| 26 | oveq2 7421 | . . . 4 ⊢ (ℎ = (𝑋 ∘f + 𝑌) → (ℂfld Σg ℎ) = (ℂfld Σg (𝑋 ∘f + 𝑌))) | |
| 27 | tdeglem.h | . . . 4 ⊢ 𝐻 = (ℎ ∈ 𝐴 ↦ (ℂfld Σg ℎ)) | |
| 28 | ovex 7446 | . . . 4 ⊢ (ℂfld Σg (𝑋 ∘f + 𝑌)) ∈ V | |
| 29 | 26, 27, 28 | fvmpt 6986 | . . 3 ⊢ ((𝑋 ∘f + 𝑌) ∈ 𝐴 → (𝐻‘(𝑋 ∘f + 𝑌)) = (ℂfld Σg (𝑋 ∘f + 𝑌))) |
| 30 | 25, 29 | syl 18 | . 2 ⊢ ((𝑋 ∈ 𝐴 ∧ 𝑌 ∈ 𝐴) → (𝐻‘(𝑋 ∘f + 𝑌)) = (ℂfld Σg (𝑋 ∘f + 𝑌))) |
| 31 | oveq2 7421 | . . . 4 ⊢ (ℎ = 𝑋 → (ℂfld Σg ℎ) = (ℂfld Σg 𝑋)) | |
| 32 | ovex 7446 | . . . 4 ⊢ (ℂfld Σg 𝑋) ∈ V | |
| 33 | 31, 27, 32 | fvmpt 6986 | . . 3 ⊢ (𝑋 ∈ 𝐴 → (𝐻‘𝑋) = (ℂfld Σg 𝑋)) |
| 34 | oveq2 7421 | . . . 4 ⊢ (ℎ = 𝑌 → (ℂfld Σg ℎ) = (ℂfld Σg 𝑌)) | |
| 35 | ovex 7446 | . . . 4 ⊢ (ℂfld Σg 𝑌) ∈ V | |
| 36 | 34, 27, 35 | fvmpt 6986 | . . 3 ⊢ (𝑌 ∈ 𝐴 → (𝐻‘𝑌) = (ℂfld Σg 𝑌)) |
| 37 | 33, 36 | oveqan12d 7432 | . 2 ⊢ ((𝑋 ∈ 𝐴 ∧ 𝑌 ∈ 𝐴) → ((𝐻‘𝑋) + (𝐻‘𝑌)) = ((ℂfld Σg 𝑋) + (ℂfld Σg 𝑌))) |
| 38 | 24, 30, 37 | 3eqtr4d 2805 | 1 ⊢ ((𝑋 ∈ 𝐴 ∧ 𝑌 ∈ 𝐴) → (𝐻‘(𝑋 ∘f + 𝑌)) = ((𝐻‘𝑋) + (𝐻‘𝑌))) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 401 = wceq 1570 ∈ wcel 2145 {crab 3412 Vcvv 3450 ⊆ wss 3899 class class class wbr 5103 ↦ cmpt 5186 ◡ccnv 5654 “ cima 5658 ⟶wf 6529 ‘cfv 6533 (class class class)co 7413 ∘f cof 7676 ↑m cmap 8826 Fincfn 8952 finSupp cfsupp 9331 ℂcc 11122 0cc0 11124 + caddc 11127 ℕcn 12257 ℕ0cn0 12528 Σg cgsu 17525 CMndccmn 19907 Ringcrg 20372 ℂfldccnfld 21585 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2213 ax-ext 2732 ax-rep 5232 ax-sep 5251 ax-nul 5263 ax-pow 5330 ax-pr 5398 ax-un 7736 ax-cnex 11180 ax-resscn 11181 ax-1cn 11182 ax-icn 11183 ax-addcl 11184 ax-addrcl 11185 ax-mulcl 11186 ax-mulrcl 11187 ax-mulcom 11188 ax-addass 11189 ax-mulass 11190 ax-distr 11191 ax-i2m1 11192 ax-1ne0 11193 ax-1rid 11194 ax-rnegex 11195 ax-rrecex 11196 ax-cnre 11197 ax-pre-lttri 11198 ax-pre-lttrn 11199 ax-pre-ltadd 11200 ax-pre-mulgt0 11201 ax-addf 11203 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2100 df-mo 2564 df-eu 2594 df-clab 2739 df-cleq 2752 df-clel 2835 df-nfc 2909 df-ne 2956 df-nel 3062 df-ral 3077 df-rex 3087 df-rmo 3365 df-reu 3366 df-rab 3413 df-v 3452 df-sbc 3740 df-csb 3848 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-pss 3919 df-nul 4280 df-if 4483 df-pw 4559 df-sn 4585 df-pr 4587 df-tp 4589 df-op 4591 df-uni 4868 df-int 4908 df-iun 4953 df-br 5104 df-opab 5168 df-mpt 5187 df-tr 5213 df-id 5550 df-eprel 5555 df-po 5563 df-so 5564 df-fr 5608 df-se 5609 df-we 5610 df-xp 5661 df-rel 5662 df-cnv 5663 df-co 5664 df-dm 5665 df-rn 5666 df-res 5667 df-ima 5668 df-pred 6299 df-ord 6360 df-on 6361 df-lim 6362 df-suc 6363 df-iota 6489 df-fun 6535 df-fn 6536 df-f 6537 df-f1 6538 df-fo 6539 df-f1o 6540 df-fv 6541 df-isom 6542 df-riota 7370 df-ov 7416 df-oprab 7417 df-mpo 7418 df-of 7678 df-om 7863 df-1st 7986 df-2nd 7987 df-supp 8159 df-frecs 8280 df-wrecs 8311 df-recs 8360 df-rdg 8399 df-1o 8455 df-er 8696 df-map 8828 df-en 8953 df-dom 8954 df-sdom 8955 df-fin 8956 df-fsupp 9332 df-oi 9482 df-card 9944 df-pnf 11269 df-mnf 11270 df-xr 11271 df-ltxr 11272 df-le 11273 df-sub 11467 df-neg 11468 df-nn 12258 df-2 12327 df-3 12328 df-4 12329 df-5 12330 df-6 12331 df-7 12332 df-8 12333 df-9 12334 df-n0 12529 df-z 12616 df-dec 12737 df-uz 12888 df-fz 13562 df-fzo 13710 df-seq 14066 df-hash 14395 df-struct 17239 df-sets 17256 df-slot 17274 df-ndx 17286 df-base 17302 df-ress 17323 df-plusg 17355 df-mulr 17356 df-starv 17357 df-tset 17361 df-ple 17362 df-ds 17364 df-unif 17365 df-0g 17526 df-gsum 17527 df-mgm 18730 df-sgrp 18821 df-mnd 18837 df-submnd 18892 df-grp 19060 df-minusg 19061 df-cntz 19444 df-cmn 19909 df-abl 19910 df-mgp 20274 df-ur 20321 df-ring 20374 df-cring 20375 df-cnfld 21586 |
| This theorem is used by: mdegmullem 26303 |
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