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Mirrors > Home > MPE Home > Th. List > mdegxrcl | Structured version Visualization version GIF version |
Description: Closure of polynomial degree in the extended reals. (Contributed by Stefan O'Rear, 19-Mar-2015.) (Proof shortened by AV, 27-Jul-2019.) |
Ref | Expression |
---|---|
mdegxrcl.d | ⊢ 𝐷 = (𝐼 mDeg 𝑅) |
mdegxrcl.p | ⊢ 𝑃 = (𝐼 mPoly 𝑅) |
mdegxrcl.b | ⊢ 𝐵 = (Base‘𝑃) |
Ref | Expression |
---|---|
mdegxrcl | ⊢ (𝐹 ∈ 𝐵 → (𝐷‘𝐹) ∈ ℝ*) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | mdegxrcl.d | . . 3 ⊢ 𝐷 = (𝐼 mDeg 𝑅) | |
2 | mdegxrcl.p | . . 3 ⊢ 𝑃 = (𝐼 mPoly 𝑅) | |
3 | mdegxrcl.b | . . 3 ⊢ 𝐵 = (Base‘𝑃) | |
4 | eqid 2739 | . . 3 ⊢ (0g‘𝑅) = (0g‘𝑅) | |
5 | eqid 2739 | . . 3 ⊢ {𝑥 ∈ (ℕ0 ↑m 𝐼) ∣ (◡𝑥 “ ℕ) ∈ Fin} = {𝑥 ∈ (ℕ0 ↑m 𝐼) ∣ (◡𝑥 “ ℕ) ∈ Fin} | |
6 | eqid 2739 | . . 3 ⊢ (𝑦 ∈ {𝑥 ∈ (ℕ0 ↑m 𝐼) ∣ (◡𝑥 “ ℕ) ∈ Fin} ↦ (ℂfld Σg 𝑦)) = (𝑦 ∈ {𝑥 ∈ (ℕ0 ↑m 𝐼) ∣ (◡𝑥 “ ℕ) ∈ Fin} ↦ (ℂfld Σg 𝑦)) | |
7 | 1, 2, 3, 4, 5, 6 | mdegval 25209 | . 2 ⊢ (𝐹 ∈ 𝐵 → (𝐷‘𝐹) = sup(((𝑦 ∈ {𝑥 ∈ (ℕ0 ↑m 𝐼) ∣ (◡𝑥 “ ℕ) ∈ Fin} ↦ (ℂfld Σg 𝑦)) “ (𝐹 supp (0g‘𝑅))), ℝ*, < )) |
8 | imassrn 5977 | . . . 4 ⊢ ((𝑦 ∈ {𝑥 ∈ (ℕ0 ↑m 𝐼) ∣ (◡𝑥 “ ℕ) ∈ Fin} ↦ (ℂfld Σg 𝑦)) “ (𝐹 supp (0g‘𝑅))) ⊆ ran (𝑦 ∈ {𝑥 ∈ (ℕ0 ↑m 𝐼) ∣ (◡𝑥 “ ℕ) ∈ Fin} ↦ (ℂfld Σg 𝑦)) | |
9 | 5, 6 | tdeglem1 25201 | . . . . . 6 ⊢ (𝑦 ∈ {𝑥 ∈ (ℕ0 ↑m 𝐼) ∣ (◡𝑥 “ ℕ) ∈ Fin} ↦ (ℂfld Σg 𝑦)):{𝑥 ∈ (ℕ0 ↑m 𝐼) ∣ (◡𝑥 “ ℕ) ∈ Fin}⟶ℕ0 |
10 | frn 6603 | . . . . . 6 ⊢ ((𝑦 ∈ {𝑥 ∈ (ℕ0 ↑m 𝐼) ∣ (◡𝑥 “ ℕ) ∈ Fin} ↦ (ℂfld Σg 𝑦)):{𝑥 ∈ (ℕ0 ↑m 𝐼) ∣ (◡𝑥 “ ℕ) ∈ Fin}⟶ℕ0 → ran (𝑦 ∈ {𝑥 ∈ (ℕ0 ↑m 𝐼) ∣ (◡𝑥 “ ℕ) ∈ Fin} ↦ (ℂfld Σg 𝑦)) ⊆ ℕ0) | |
11 | 9, 10 | mp1i 13 | . . . . 5 ⊢ (𝐹 ∈ 𝐵 → ran (𝑦 ∈ {𝑥 ∈ (ℕ0 ↑m 𝐼) ∣ (◡𝑥 “ ℕ) ∈ Fin} ↦ (ℂfld Σg 𝑦)) ⊆ ℕ0) |
12 | nn0ssre 12220 | . . . . . 6 ⊢ ℕ0 ⊆ ℝ | |
13 | ressxr 11003 | . . . . . 6 ⊢ ℝ ⊆ ℝ* | |
14 | 12, 13 | sstri 3934 | . . . . 5 ⊢ ℕ0 ⊆ ℝ* |
15 | 11, 14 | sstrdi 3937 | . . . 4 ⊢ (𝐹 ∈ 𝐵 → ran (𝑦 ∈ {𝑥 ∈ (ℕ0 ↑m 𝐼) ∣ (◡𝑥 “ ℕ) ∈ Fin} ↦ (ℂfld Σg 𝑦)) ⊆ ℝ*) |
16 | 8, 15 | sstrid 3936 | . . 3 ⊢ (𝐹 ∈ 𝐵 → ((𝑦 ∈ {𝑥 ∈ (ℕ0 ↑m 𝐼) ∣ (◡𝑥 “ ℕ) ∈ Fin} ↦ (ℂfld Σg 𝑦)) “ (𝐹 supp (0g‘𝑅))) ⊆ ℝ*) |
17 | supxrcl 13031 | . . 3 ⊢ (((𝑦 ∈ {𝑥 ∈ (ℕ0 ↑m 𝐼) ∣ (◡𝑥 “ ℕ) ∈ Fin} ↦ (ℂfld Σg 𝑦)) “ (𝐹 supp (0g‘𝑅))) ⊆ ℝ* → sup(((𝑦 ∈ {𝑥 ∈ (ℕ0 ↑m 𝐼) ∣ (◡𝑥 “ ℕ) ∈ Fin} ↦ (ℂfld Σg 𝑦)) “ (𝐹 supp (0g‘𝑅))), ℝ*, < ) ∈ ℝ*) | |
18 | 16, 17 | syl 17 | . 2 ⊢ (𝐹 ∈ 𝐵 → sup(((𝑦 ∈ {𝑥 ∈ (ℕ0 ↑m 𝐼) ∣ (◡𝑥 “ ℕ) ∈ Fin} ↦ (ℂfld Σg 𝑦)) “ (𝐹 supp (0g‘𝑅))), ℝ*, < ) ∈ ℝ*) |
19 | 7, 18 | eqeltrd 2840 | 1 ⊢ (𝐹 ∈ 𝐵 → (𝐷‘𝐹) ∈ ℝ*) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 = wceq 1541 ∈ wcel 2109 {crab 3069 ⊆ wss 3891 ↦ cmpt 5161 ◡ccnv 5587 ran crn 5589 “ cima 5591 ⟶wf 6426 ‘cfv 6430 (class class class)co 7268 supp csupp 7961 ↑m cmap 8589 Fincfn 8707 supcsup 9160 ℝcr 10854 ℝ*cxr 10992 < clt 10993 ℕcn 11956 ℕ0cn0 12216 Basecbs 16893 0gc0g 17131 Σg cgsu 17132 ℂfldccnfld 20578 mPoly cmpl 21090 mDeg cmdg 25196 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1801 ax-4 1815 ax-5 1916 ax-6 1974 ax-7 2014 ax-8 2111 ax-9 2119 ax-10 2140 ax-11 2157 ax-12 2174 ax-ext 2710 ax-rep 5213 ax-sep 5226 ax-nul 5233 ax-pow 5291 ax-pr 5355 ax-un 7579 ax-cnex 10911 ax-resscn 10912 ax-1cn 10913 ax-icn 10914 ax-addcl 10915 ax-addrcl 10916 ax-mulcl 10917 ax-mulrcl 10918 ax-mulcom 10919 ax-addass 10920 ax-mulass 10921 ax-distr 10922 ax-i2m1 10923 ax-1ne0 10924 ax-1rid 10925 ax-rnegex 10926 ax-rrecex 10927 ax-cnre 10928 ax-pre-lttri 10929 ax-pre-lttrn 10930 ax-pre-ltadd 10931 ax-pre-mulgt0 10932 ax-pre-sup 10933 ax-addf 10934 ax-mulf 10935 |
This theorem depends on definitions: df-bi 206 df-an 396 df-or 844 df-3or 1086 df-3an 1087 df-tru 1544 df-fal 1554 df-ex 1786 df-nf 1790 df-sb 2071 df-mo 2541 df-eu 2570 df-clab 2717 df-cleq 2731 df-clel 2817 df-nfc 2890 df-ne 2945 df-nel 3051 df-ral 3070 df-rex 3071 df-reu 3072 df-rmo 3073 df-rab 3074 df-v 3432 df-sbc 3720 df-csb 3837 df-dif 3894 df-un 3896 df-in 3898 df-ss 3908 df-pss 3910 df-nul 4262 df-if 4465 df-pw 4540 df-sn 4567 df-pr 4569 df-tp 4571 df-op 4573 df-uni 4845 df-int 4885 df-iun 4931 df-br 5079 df-opab 5141 df-mpt 5162 df-tr 5196 df-id 5488 df-eprel 5494 df-po 5502 df-so 5503 df-fr 5543 df-se 5544 df-we 5545 df-xp 5594 df-rel 5595 df-cnv 5596 df-co 5597 df-dm 5598 df-rn 5599 df-res 5600 df-ima 5601 df-pred 6199 df-ord 6266 df-on 6267 df-lim 6268 df-suc 6269 df-iota 6388 df-fun 6432 df-fn 6433 df-f 6434 df-f1 6435 df-fo 6436 df-f1o 6437 df-fv 6438 df-isom 6439 df-riota 7225 df-ov 7271 df-oprab 7272 df-mpo 7273 df-of 7524 df-om 7701 df-1st 7817 df-2nd 7818 df-supp 7962 df-frecs 8081 df-wrecs 8112 df-recs 8186 df-rdg 8225 df-1o 8281 df-er 8472 df-map 8591 df-en 8708 df-dom 8709 df-sdom 8710 df-fin 8711 df-fsupp 9090 df-sup 9162 df-oi 9230 df-card 9681 df-pnf 10995 df-mnf 10996 df-xr 10997 df-ltxr 10998 df-le 10999 df-sub 11190 df-neg 11191 df-nn 11957 df-2 12019 df-3 12020 df-4 12021 df-5 12022 df-6 12023 df-7 12024 df-8 12025 df-9 12026 df-n0 12217 df-z 12303 df-dec 12420 df-uz 12565 df-fz 13222 df-fzo 13365 df-seq 13703 df-hash 14026 df-struct 16829 df-sets 16846 df-slot 16864 df-ndx 16876 df-base 16894 df-ress 16923 df-plusg 16956 df-mulr 16957 df-starv 16958 df-sca 16959 df-vsca 16960 df-tset 16962 df-ple 16963 df-ds 16965 df-unif 16966 df-0g 17133 df-gsum 17134 df-mgm 18307 df-sgrp 18356 df-mnd 18367 df-submnd 18412 df-grp 18561 df-minusg 18562 df-cntz 18904 df-cmn 19369 df-abl 19370 df-mgp 19702 df-ur 19719 df-ring 19766 df-cring 19767 df-cnfld 20579 df-psr 21093 df-mpl 21095 df-mdeg 25198 |
This theorem is referenced by: mdegxrf 25214 mdegaddle 25220 mdegvscale 25221 mdegmullem 25224 |
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