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| Mirrors > Home > MPE Home > Th. List > deg1addle | Structured version Visualization version GIF version | ||
| Description: The degree of a sum is at most the maximum of the degrees of the factors. (Contributed by Stefan O'Rear, 26-Mar-2015.) |
| Ref | Expression |
|---|---|
| deg1addle.y | ⊢ 𝑌 = (Poly1‘𝑅) |
| deg1addle.d | ⊢ 𝐷 = (deg1‘𝑅) |
| deg1addle.r | ⊢ (𝜑 → 𝑅 ∈ Ring) |
| deg1addle.b | ⊢ 𝐵 = (Base‘𝑌) |
| deg1addle.p | ⊢ + = (+g‘𝑌) |
| deg1addle.f | ⊢ (𝜑 → 𝐹 ∈ 𝐵) |
| deg1addle.g | ⊢ (𝜑 → 𝐺 ∈ 𝐵) |
| Ref | Expression |
|---|---|
| deg1addle | ⊢ (𝜑 → (𝐷‘(𝐹 + 𝐺)) ≤ if((𝐷‘𝐹) ≤ (𝐷‘𝐺), (𝐷‘𝐺), (𝐷‘𝐹))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | eqid 2731 | . 2 ⊢ (1o mPoly 𝑅) = (1o mPoly 𝑅) | |
| 2 | deg1addle.d | . . 3 ⊢ 𝐷 = (deg1‘𝑅) | |
| 3 | 2 | deg1fval 26007 | . 2 ⊢ 𝐷 = (1o mDeg 𝑅) |
| 4 | 1on 8392 | . . 3 ⊢ 1o ∈ On | |
| 5 | 4 | a1i 11 | . 2 ⊢ (𝜑 → 1o ∈ On) |
| 6 | deg1addle.r | . 2 ⊢ (𝜑 → 𝑅 ∈ Ring) | |
| 7 | eqid 2731 | . 2 ⊢ (Base‘(1o mPoly 𝑅)) = (Base‘(1o mPoly 𝑅)) | |
| 8 | deg1addle.y | . . 3 ⊢ 𝑌 = (Poly1‘𝑅) | |
| 9 | deg1addle.p | . . 3 ⊢ + = (+g‘𝑌) | |
| 10 | 8, 1, 9 | ply1plusg 22131 | . 2 ⊢ + = (+g‘(1o mPoly 𝑅)) |
| 11 | deg1addle.f | . . 3 ⊢ (𝜑 → 𝐹 ∈ 𝐵) | |
| 12 | deg1addle.b | . . . 4 ⊢ 𝐵 = (Base‘𝑌) | |
| 13 | 8, 12 | ply1bascl2 22112 | . . 3 ⊢ (𝐹 ∈ 𝐵 → 𝐹 ∈ (Base‘(1o mPoly 𝑅))) |
| 14 | 11, 13 | syl 17 | . 2 ⊢ (𝜑 → 𝐹 ∈ (Base‘(1o mPoly 𝑅))) |
| 15 | deg1addle.g | . . 3 ⊢ (𝜑 → 𝐺 ∈ 𝐵) | |
| 16 | 8, 12 | ply1bascl2 22112 | . . 3 ⊢ (𝐺 ∈ 𝐵 → 𝐺 ∈ (Base‘(1o mPoly 𝑅))) |
| 17 | 15, 16 | syl 17 | . 2 ⊢ (𝜑 → 𝐺 ∈ (Base‘(1o mPoly 𝑅))) |
| 18 | 1, 3, 5, 6, 7, 10, 14, 17 | mdegaddle 26001 | 1 ⊢ (𝜑 → (𝐷‘(𝐹 + 𝐺)) ≤ if((𝐷‘𝐹) ≤ (𝐷‘𝐺), (𝐷‘𝐺), (𝐷‘𝐹))) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1541 ∈ wcel 2111 ifcif 4470 class class class wbr 5086 Oncon0 6301 ‘cfv 6476 (class class class)co 7341 1oc1o 8373 ≤ cle 11142 Basecbs 17115 +gcplusg 17156 Ringcrg 20146 mPoly cmpl 21838 Poly1cpl1 22084 deg1cdg1 25981 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1968 ax-7 2009 ax-8 2113 ax-9 2121 ax-10 2144 ax-11 2160 ax-12 2180 ax-ext 2703 ax-rep 5212 ax-sep 5229 ax-nul 5239 ax-pow 5298 ax-pr 5365 ax-un 7663 ax-cnex 11057 ax-resscn 11058 ax-1cn 11059 ax-icn 11060 ax-addcl 11061 ax-addrcl 11062 ax-mulcl 11063 ax-mulrcl 11064 ax-mulcom 11065 ax-addass 11066 ax-mulass 11067 ax-distr 11068 ax-i2m1 11069 ax-1ne0 11070 ax-1rid 11071 ax-rnegex 11072 ax-rrecex 11073 ax-cnre 11074 ax-pre-lttri 11075 ax-pre-lttrn 11076 ax-pre-ltadd 11077 ax-pre-mulgt0 11078 ax-pre-sup 11079 ax-addf 11080 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3or 1087 df-3an 1088 df-tru 1544 df-fal 1554 df-ex 1781 df-nf 1785 df-sb 2068 df-mo 2535 df-eu 2564 df-clab 2710 df-cleq 2723 df-clel 2806 df-nfc 2881 df-ne 2929 df-nel 3033 df-ral 3048 df-rex 3057 df-rmo 3346 df-reu 3347 df-rab 3396 df-v 3438 df-sbc 3737 df-csb 3846 df-dif 3900 df-un 3902 df-in 3904 df-ss 3914 df-pss 3917 df-nul 4279 df-if 4471 df-pw 4547 df-sn 4572 df-pr 4574 df-tp 4576 df-op 4578 df-uni 4855 df-int 4893 df-iun 4938 df-iin 4939 df-br 5087 df-opab 5149 df-mpt 5168 df-tr 5194 df-id 5506 df-eprel 5511 df-po 5519 df-so 5520 df-fr 5564 df-se 5565 df-we 5566 df-xp 5617 df-rel 5618 df-cnv 5619 df-co 5620 df-dm 5621 df-rn 5622 df-res 5623 df-ima 5624 df-pred 6243 df-ord 6304 df-on 6305 df-lim 6306 df-suc 6307 df-iota 6432 df-fun 6478 df-fn 6479 df-f 6480 df-f1 6481 df-fo 6482 df-f1o 6483 df-fv 6484 df-isom 6485 df-riota 7298 df-ov 7344 df-oprab 7345 df-mpo 7346 df-of 7605 df-ofr 7606 df-om 7792 df-1st 7916 df-2nd 7917 df-supp 8086 df-frecs 8206 df-wrecs 8237 df-recs 8286 df-rdg 8324 df-1o 8380 df-2o 8381 df-er 8617 df-map 8747 df-pm 8748 df-ixp 8817 df-en 8865 df-dom 8866 df-sdom 8867 df-fin 8868 df-fsupp 9241 df-sup 9321 df-oi 9391 df-card 9827 df-pnf 11143 df-mnf 11144 df-xr 11145 df-ltxr 11146 df-le 11147 df-sub 11341 df-neg 11342 df-nn 12121 df-2 12183 df-3 12184 df-4 12185 df-5 12186 df-6 12187 df-7 12188 df-8 12189 df-9 12190 df-n0 12377 df-z 12464 df-dec 12584 df-uz 12728 df-fz 13403 df-fzo 13550 df-seq 13904 df-hash 14233 df-struct 17053 df-sets 17070 df-slot 17088 df-ndx 17100 df-base 17116 df-ress 17137 df-plusg 17169 df-mulr 17170 df-starv 17171 df-sca 17172 df-vsca 17173 df-ip 17174 df-tset 17175 df-ple 17176 df-ds 17178 df-unif 17179 df-hom 17180 df-cco 17181 df-0g 17340 df-gsum 17341 df-prds 17346 df-pws 17348 df-mre 17483 df-mrc 17484 df-acs 17486 df-mgm 18543 df-sgrp 18622 df-mnd 18638 df-mhm 18686 df-submnd 18687 df-grp 18844 df-minusg 18845 df-mulg 18976 df-subg 19031 df-ghm 19120 df-cntz 19224 df-cmn 19689 df-abl 19690 df-mgp 20054 df-rng 20066 df-ur 20095 df-ring 20148 df-cring 20149 df-subrng 20456 df-subrg 20480 df-cnfld 21287 df-psr 21841 df-mpl 21843 df-opsr 21845 df-psr1 22087 df-ply1 22089 df-mdeg 25982 df-deg1 25983 |
| This theorem is referenced by: deg1addle2 26029 deg1add 26030 deg1suble 26034 deg1addlt 33552 |
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