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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 2821 | . 2 ⊢ (1o mPoly 𝑅) = (1o mPoly 𝑅) | |
2 | deg1addle.d | . . 3 ⊢ 𝐷 = ( deg1 ‘𝑅) | |
3 | 2 | deg1fval 24674 | . 2 ⊢ 𝐷 = (1o mDeg 𝑅) |
4 | 1on 8109 | . . 3 ⊢ 1o ∈ On | |
5 | 4 | a1i 11 | . 2 ⊢ (𝜑 → 1o ∈ On) |
6 | deg1addle.r | . 2 ⊢ (𝜑 → 𝑅 ∈ Ring) | |
7 | eqid 2821 | . 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 20393 | . 2 ⊢ + = (+g‘(1o mPoly 𝑅)) |
11 | deg1addle.f | . . 3 ⊢ (𝜑 → 𝐹 ∈ 𝐵) | |
12 | deg1addle.b | . . . 4 ⊢ 𝐵 = (Base‘𝑌) | |
13 | 8, 12 | ply1bascl2 20372 | . . 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 20372 | . . 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 24668 | 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 1537 ∈ wcel 2114 ifcif 4467 class class class wbr 5066 Oncon0 6191 ‘cfv 6355 (class class class)co 7156 1oc1o 8095 ≤ cle 10676 Basecbs 16483 +gcplusg 16565 Ringcrg 19297 mPoly cmpl 20133 Poly1cpl1 20345 deg1 cdg1 24648 |
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 1970 ax-7 2015 ax-8 2116 ax-9 2124 ax-10 2145 ax-11 2161 ax-12 2177 ax-ext 2793 ax-rep 5190 ax-sep 5203 ax-nul 5210 ax-pow 5266 ax-pr 5330 ax-un 7461 ax-cnex 10593 ax-resscn 10594 ax-1cn 10595 ax-icn 10596 ax-addcl 10597 ax-addrcl 10598 ax-mulcl 10599 ax-mulrcl 10600 ax-mulcom 10601 ax-addass 10602 ax-mulass 10603 ax-distr 10604 ax-i2m1 10605 ax-1ne0 10606 ax-1rid 10607 ax-rnegex 10608 ax-rrecex 10609 ax-cnre 10610 ax-pre-lttri 10611 ax-pre-lttrn 10612 ax-pre-ltadd 10613 ax-pre-mulgt0 10614 ax-pre-sup 10615 ax-addf 10616 ax-mulf 10617 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3or 1084 df-3an 1085 df-tru 1540 df-ex 1781 df-nf 1785 df-sb 2070 df-mo 2622 df-eu 2654 df-clab 2800 df-cleq 2814 df-clel 2893 df-nfc 2963 df-ne 3017 df-nel 3124 df-ral 3143 df-rex 3144 df-reu 3145 df-rmo 3146 df-rab 3147 df-v 3496 df-sbc 3773 df-csb 3884 df-dif 3939 df-un 3941 df-in 3943 df-ss 3952 df-pss 3954 df-nul 4292 df-if 4468 df-pw 4541 df-sn 4568 df-pr 4570 df-tp 4572 df-op 4574 df-uni 4839 df-int 4877 df-iun 4921 df-iin 4922 df-br 5067 df-opab 5129 df-mpt 5147 df-tr 5173 df-id 5460 df-eprel 5465 df-po 5474 df-so 5475 df-fr 5514 df-se 5515 df-we 5516 df-xp 5561 df-rel 5562 df-cnv 5563 df-co 5564 df-dm 5565 df-rn 5566 df-res 5567 df-ima 5568 df-pred 6148 df-ord 6194 df-on 6195 df-lim 6196 df-suc 6197 df-iota 6314 df-fun 6357 df-fn 6358 df-f 6359 df-f1 6360 df-fo 6361 df-f1o 6362 df-fv 6363 df-isom 6364 df-riota 7114 df-ov 7159 df-oprab 7160 df-mpo 7161 df-of 7409 df-ofr 7410 df-om 7581 df-1st 7689 df-2nd 7690 df-supp 7831 df-wrecs 7947 df-recs 8008 df-rdg 8046 df-1o 8102 df-2o 8103 df-oadd 8106 df-er 8289 df-map 8408 df-pm 8409 df-ixp 8462 df-en 8510 df-dom 8511 df-sdom 8512 df-fin 8513 df-fsupp 8834 df-sup 8906 df-oi 8974 df-card 9368 df-pnf 10677 df-mnf 10678 df-xr 10679 df-ltxr 10680 df-le 10681 df-sub 10872 df-neg 10873 df-nn 11639 df-2 11701 df-3 11702 df-4 11703 df-5 11704 df-6 11705 df-7 11706 df-8 11707 df-9 11708 df-n0 11899 df-z 11983 df-dec 12100 df-uz 12245 df-fz 12894 df-fzo 13035 df-seq 13371 df-hash 13692 df-struct 16485 df-ndx 16486 df-slot 16487 df-base 16489 df-sets 16490 df-ress 16491 df-plusg 16578 df-mulr 16579 df-starv 16580 df-sca 16581 df-vsca 16582 df-tset 16584 df-ple 16585 df-ds 16587 df-unif 16588 df-0g 16715 df-gsum 16716 df-mre 16857 df-mrc 16858 df-acs 16860 df-mgm 17852 df-sgrp 17901 df-mnd 17912 df-mhm 17956 df-submnd 17957 df-grp 18106 df-minusg 18107 df-mulg 18225 df-subg 18276 df-ghm 18356 df-cntz 18447 df-cmn 18908 df-abl 18909 df-mgp 19240 df-ur 19252 df-ring 19299 df-cring 19300 df-subrg 19533 df-psr 20136 df-mpl 20138 df-opsr 20140 df-psr1 20348 df-ply1 20350 df-cnfld 20546 df-mdeg 24649 df-deg1 24650 |
This theorem is referenced by: deg1addle2 24696 deg1add 24697 deg1suble 24701 |
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