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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 21675 | . . 3 ⊢ ℂ = (Base‘ℂfld) | |
| 2 | cnfld0 21695 | . . 3 ⊢ 0 = (0g‘ℂfld) | |
| 3 | cnfldadd 21677 | . . 3 ⊢ + = (+g‘ℂfld) | |
| 4 | cnring 21693 | . . . 4 ⊢ ℂfld ∈ Ring | |
| 5 | ringcmn 20504 | . . . 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 22219 | . . . . . . 7 ⊢ (𝑋 ∈ 𝐴 → 𝑋:𝐼⟶ℕ0) |
| 10 | nn0sscn 12604 | . . . . . . 7 ⊢ ℕ0 ⊆ ℂ | |
| 11 | fss 6724 | . . . . . . 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 6708 | . . . 4 ⊢ ((𝑋 ∈ 𝐴 ∧ 𝑌 ∈ 𝐴) → 𝑋 Fn 𝐼) |
| 15 | 7, 14 | fndmexd 7914 | . . 3 ⊢ ((𝑋 ∈ 𝐴 ∧ 𝑌 ∈ 𝐴) → 𝐼 ∈ V) |
| 16 | 8 | psrbagf 22219 | . . . . 5 ⊢ (𝑌 ∈ 𝐴 → 𝑌:𝐼⟶ℕ0) |
| 17 | fss 6724 | . . . . 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 22220 | . . . 4 ⊢ (𝑋 ∈ 𝐴 → 𝑋 finSupp 0) |
| 21 | 20 | adantr 486 | . . 3 ⊢ ((𝑋 ∈ 𝐴 ∧ 𝑌 ∈ 𝐴) → 𝑋 finSupp 0) |
| 22 | 8 | psrbagfsupp 22220 | . . . 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 20130 | . 2 ⊢ ((𝑋 ∈ 𝐴 ∧ 𝑌 ∈ 𝐴) → (ℂfld Σg (𝑋 ∘f + 𝑌)) = ((ℂfld Σg 𝑋) + (ℂfld Σg 𝑌))) |
| 25 | 8 | psrbagaddcl 22225 | . . 3 ⊢ ((𝑋 ∈ 𝐴 ∧ 𝑌 ∈ 𝐴) → (𝑋 ∘f + 𝑌) ∈ 𝐴) |
| 26 | oveq2 7426 | . . . 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 7451 | . . . 4 ⊢ (ℂfld Σg (𝑋 ∘f + 𝑌)) ∈ V | |
| 29 | 26, 27, 28 | fvmpt 6991 | . . 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 7426 | . . . 4 ⊢ (ℎ = 𝑋 → (ℂfld Σg ℎ) = (ℂfld Σg 𝑋)) | |
| 32 | ovex 7451 | . . . 4 ⊢ (ℂfld Σg 𝑋) ∈ V | |
| 33 | 31, 27, 32 | fvmpt 6991 | . . 3 ⊢ (𝑋 ∈ 𝐴 → (𝐻‘𝑋) = (ℂfld Σg 𝑋)) |
| 34 | oveq2 7426 | . . . 4 ⊢ (ℎ = 𝑌 → (ℂfld Σg ℎ) = (ℂfld Σg 𝑌)) | |
| 35 | ovex 7451 | . . . 4 ⊢ (ℂfld Σg 𝑌) ∈ V | |
| 36 | 34, 27, 35 | fvmpt 6991 | . . 3 ⊢ (𝑌 ∈ 𝐴 → (𝐻‘𝑌) = (ℂfld Σg 𝑌)) |
| 37 | 33, 36 | oveqan12d 7437 | . 2 ⊢ ((𝑋 ∈ 𝐴 ∧ 𝑌 ∈ 𝐴) → ((𝐻‘𝑋) + (𝐻‘𝑌)) = ((ℂfld Σg 𝑋) + (ℂfld Σg 𝑌))) |
| 38 | 24, 30, 37 | 3eqtr4d 2806 | 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 3413 Vcvv 3451 ⊆ wss 3899 class class class wbr 5103 ↦ cmpt 5186 ◡ccnv 5650 “ cima 5654 ⟶wf 6533 ‘cfv 6537 (class class class)co 7418 ∘f cof 7689 ↑m cmap 8840 Fincfn 8966 finSupp cfsupp 9346 ℂcc 11191 0cc0 11193 + caddc 11196 ℕcn 12328 ℕ0cn0 12599 Σg cgsu 17604 CMndccmn 19987 Ringcrg 20452 ℂfldccnfld 21671 |
| 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 2733 ax-rep 5232 ax-sep 5249 ax-nul 5260 ax-pow 5327 ax-pr 5391 ax-un 7749 ax-cnex 11249 ax-resscn 11250 ax-1cn 11251 ax-icn 11252 ax-addcl 11253 ax-addrcl 11254 ax-mulcl 11255 ax-mulrcl 11256 ax-mulcom 11257 ax-addass 11258 ax-mulass 11259 ax-distr 11260 ax-i2m1 11261 ax-1ne0 11262 ax-1rid 11263 ax-rnegex 11264 ax-rrecex 11265 ax-cnre 11266 ax-pre-lttri 11267 ax-pre-lttrn 11268 ax-pre-ltadd 11269 ax-pre-mulgt0 11270 ax-addf 11272 |
| 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 2565 df-eu 2595 df-clab 2740 df-cleq 2753 df-clel 2836 df-nfc 2910 df-ne 2957 df-nel 3063 df-ral 3078 df-rex 3088 df-rmo 3366 df-reu 3367 df-rab 3414 df-v 3453 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 5546 df-eprel 5551 df-po 5559 df-so 5560 df-fr 5604 df-se 5605 df-we 5606 df-xp 5657 df-rel 5658 df-cnv 5659 df-co 5660 df-dm 5661 df-rn 5662 df-res 5663 df-ima 5664 df-pred 6303 df-ord 6364 df-on 6365 df-lim 6366 df-suc 6367 df-iota 6493 df-fun 6539 df-fn 6540 df-f 6541 df-f1 6542 df-fo 6543 df-f1o 6544 df-fv 6545 df-isom 6546 df-riota 7375 df-ov 7421 df-oprab 7422 df-mpo 7423 df-of 7691 df-om 7876 df-1st 7999 df-2nd 8000 df-supp 8171 df-frecs 8292 df-wrecs 8323 df-recs 8372 df-rdg 8411 df-1o 8469 df-er 8710 df-map 8842 df-en 8967 df-dom 8968 df-sdom 8969 df-fin 8970 df-fsupp 9347 df-oi 9497 df-card 10013 df-pnf 11338 df-mnf 11339 df-xr 11340 df-ltxr 11341 df-le 11342 df-sub 11536 df-neg 11537 df-nn 12329 df-2 12398 df-3 12399 df-4 12400 df-5 12401 df-6 12402 df-7 12403 df-8 12404 df-9 12405 df-n0 12600 df-z 12687 df-dec 12808 df-uz 12959 df-fz 13633 df-fzo 13782 df-seq 14138 df-hash 14468 df-struct 17318 df-sets 17335 df-slot 17353 df-ndx 17365 df-base 17381 df-ress 17402 df-plusg 17434 df-mulr 17435 df-starv 17436 df-tset 17440 df-ple 17441 df-ds 17443 df-unif 17444 df-0g 17605 df-gsum 17606 df-mgm 18809 df-sgrp 18901 df-mnd 18917 df-submnd 18972 df-grp 19140 df-minusg 19141 df-cntz 19524 df-cmn 19989 df-abl 19990 df-mgp 20354 df-ur 20401 df-ring 20454 df-cring 20455 df-cnfld 21672 |
| This theorem is used by: mdegmullem 26389 |
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