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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 2733 | . 2 ⊢ (1o mPoly 𝑅) = (1o mPoly 𝑅) | |
| 2 | deg1addle.d | . . 3 ⊢ 𝐷 = (deg1‘𝑅) | |
| 3 | 2 | deg1fval 26032 | . 2 ⊢ 𝐷 = (1o mDeg 𝑅) |
| 4 | 1on 8406 | . . 3 ⊢ 1o ∈ On | |
| 5 | 4 | a1i 11 | . 2 ⊢ (𝜑 → 1o ∈ On) |
| 6 | deg1addle.r | . 2 ⊢ (𝜑 → 𝑅 ∈ Ring) | |
| 7 | eqid 2733 | . 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 22155 | . 2 ⊢ + = (+g‘(1o mPoly 𝑅)) |
| 11 | deg1addle.f | . . 3 ⊢ (𝜑 → 𝐹 ∈ 𝐵) | |
| 12 | deg1addle.b | . . . 4 ⊢ 𝐵 = (Base‘𝑌) | |
| 13 | 8, 12 | ply1bascl2 22136 | . . 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 22136 | . . 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 26026 | 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 2113 ifcif 4476 class class class wbr 5095 Oncon0 6314 ‘cfv 6489 (class class class)co 7355 1oc1o 8387 ≤ cle 11158 Basecbs 17127 +gcplusg 17168 Ringcrg 20159 mPoly cmpl 21853 Poly1cpl1 22108 deg1cdg1 26006 |
| 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 2115 ax-9 2123 ax-10 2146 ax-11 2162 ax-12 2182 ax-ext 2705 ax-rep 5221 ax-sep 5238 ax-nul 5248 ax-pow 5307 ax-pr 5374 ax-un 7677 ax-cnex 11073 ax-resscn 11074 ax-1cn 11075 ax-icn 11076 ax-addcl 11077 ax-addrcl 11078 ax-mulcl 11079 ax-mulrcl 11080 ax-mulcom 11081 ax-addass 11082 ax-mulass 11083 ax-distr 11084 ax-i2m1 11085 ax-1ne0 11086 ax-1rid 11087 ax-rnegex 11088 ax-rrecex 11089 ax-cnre 11090 ax-pre-lttri 11091 ax-pre-lttrn 11092 ax-pre-ltadd 11093 ax-pre-mulgt0 11094 ax-pre-sup 11095 ax-addf 11096 |
| 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 2537 df-eu 2566 df-clab 2712 df-cleq 2725 df-clel 2808 df-nfc 2882 df-ne 2930 df-nel 3034 df-ral 3049 df-rex 3058 df-rmo 3347 df-reu 3348 df-rab 3397 df-v 3439 df-sbc 3738 df-csb 3847 df-dif 3901 df-un 3903 df-in 3905 df-ss 3915 df-pss 3918 df-nul 4283 df-if 4477 df-pw 4553 df-sn 4578 df-pr 4580 df-tp 4582 df-op 4584 df-uni 4861 df-int 4900 df-iun 4945 df-iin 4946 df-br 5096 df-opab 5158 df-mpt 5177 df-tr 5203 df-id 5516 df-eprel 5521 df-po 5529 df-so 5530 df-fr 5574 df-se 5575 df-we 5576 df-xp 5627 df-rel 5628 df-cnv 5629 df-co 5630 df-dm 5631 df-rn 5632 df-res 5633 df-ima 5634 df-pred 6256 df-ord 6317 df-on 6318 df-lim 6319 df-suc 6320 df-iota 6445 df-fun 6491 df-fn 6492 df-f 6493 df-f1 6494 df-fo 6495 df-f1o 6496 df-fv 6497 df-isom 6498 df-riota 7312 df-ov 7358 df-oprab 7359 df-mpo 7360 df-of 7619 df-ofr 7620 df-om 7806 df-1st 7930 df-2nd 7931 df-supp 8100 df-frecs 8220 df-wrecs 8251 df-recs 8300 df-rdg 8338 df-1o 8394 df-2o 8395 df-er 8631 df-map 8761 df-pm 8762 df-ixp 8832 df-en 8880 df-dom 8881 df-sdom 8882 df-fin 8883 df-fsupp 9257 df-sup 9337 df-oi 9407 df-card 9843 df-pnf 11159 df-mnf 11160 df-xr 11161 df-ltxr 11162 df-le 11163 df-sub 11357 df-neg 11358 df-nn 12137 df-2 12199 df-3 12200 df-4 12201 df-5 12202 df-6 12203 df-7 12204 df-8 12205 df-9 12206 df-n0 12393 df-z 12480 df-dec 12599 df-uz 12743 df-fz 13415 df-fzo 13562 df-seq 13916 df-hash 14245 df-struct 17065 df-sets 17082 df-slot 17100 df-ndx 17112 df-base 17128 df-ress 17149 df-plusg 17181 df-mulr 17182 df-starv 17183 df-sca 17184 df-vsca 17185 df-ip 17186 df-tset 17187 df-ple 17188 df-ds 17190 df-unif 17191 df-hom 17192 df-cco 17193 df-0g 17352 df-gsum 17353 df-prds 17358 df-pws 17360 df-mre 17496 df-mrc 17497 df-acs 17499 df-mgm 18556 df-sgrp 18635 df-mnd 18651 df-mhm 18699 df-submnd 18700 df-grp 18857 df-minusg 18858 df-mulg 18989 df-subg 19044 df-ghm 19133 df-cntz 19237 df-cmn 19702 df-abl 19703 df-mgp 20067 df-rng 20079 df-ur 20108 df-ring 20161 df-cring 20162 df-subrng 20470 df-subrg 20494 df-cnfld 21301 df-psr 21856 df-mpl 21858 df-opsr 21860 df-psr1 22111 df-ply1 22113 df-mdeg 26007 df-deg1 26008 |
| This theorem is referenced by: deg1addle2 26054 deg1add 26055 deg1suble 26059 deg1addlt 33609 |
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