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Mirrors > Home > MPE Home > Th. List > deg1fvi | Structured version Visualization version GIF version |
Description: Univariate polynomial degree respects protection. (Contributed by Stefan O'Rear, 28-Mar-2015.) |
Ref | Expression |
---|---|
deg1fvi | ⊢ ( deg1 ‘𝑅) = ( deg1 ‘( I ‘𝑅)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | fvi 6255 | . . . 4 ⊢ (𝑅 ∈ V → ( I ‘𝑅) = 𝑅) | |
2 | 1 | fveq2d 6195 | . . 3 ⊢ (𝑅 ∈ V → ( deg1 ‘( I ‘𝑅)) = ( deg1 ‘𝑅)) |
3 | eqid 2622 | . . . . . . 7 ⊢ ( deg1 ‘∅) = ( deg1 ‘∅) | |
4 | eqid 2622 | . . . . . . 7 ⊢ (Poly1‘∅) = (Poly1‘∅) | |
5 | 00ply1bas 19610 | . . . . . . 7 ⊢ ∅ = (Base‘(Poly1‘∅)) | |
6 | 3, 4, 5 | deg1xrf 23841 | . . . . . 6 ⊢ ( deg1 ‘∅):∅⟶ℝ* |
7 | ffn 6045 | . . . . . 6 ⊢ (( deg1 ‘∅):∅⟶ℝ* → ( deg1 ‘∅) Fn ∅) | |
8 | 6, 7 | ax-mp 5 | . . . . 5 ⊢ ( deg1 ‘∅) Fn ∅ |
9 | fn0 6011 | . . . . 5 ⊢ (( deg1 ‘∅) Fn ∅ ↔ ( deg1 ‘∅) = ∅) | |
10 | 8, 9 | mpbi 220 | . . . 4 ⊢ ( deg1 ‘∅) = ∅ |
11 | fvprc 6185 | . . . . 5 ⊢ (¬ 𝑅 ∈ V → ( I ‘𝑅) = ∅) | |
12 | 11 | fveq2d 6195 | . . . 4 ⊢ (¬ 𝑅 ∈ V → ( deg1 ‘( I ‘𝑅)) = ( deg1 ‘∅)) |
13 | fvprc 6185 | . . . 4 ⊢ (¬ 𝑅 ∈ V → ( deg1 ‘𝑅) = ∅) | |
14 | 10, 12, 13 | 3eqtr4a 2682 | . . 3 ⊢ (¬ 𝑅 ∈ V → ( deg1 ‘( I ‘𝑅)) = ( deg1 ‘𝑅)) |
15 | 2, 14 | pm2.61i 176 | . 2 ⊢ ( deg1 ‘( I ‘𝑅)) = ( deg1 ‘𝑅) |
16 | 15 | eqcomi 2631 | 1 ⊢ ( deg1 ‘𝑅) = ( deg1 ‘( I ‘𝑅)) |
Colors of variables: wff setvar class |
Syntax hints: ¬ wn 3 = wceq 1483 ∈ wcel 1990 Vcvv 3200 ∅c0 3915 I cid 5023 Fn wfn 5883 ⟶wf 5884 ‘cfv 5888 ℝ*cxr 10073 Poly1cpl1 19547 deg1 cdg1 23814 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1722 ax-4 1737 ax-5 1839 ax-6 1888 ax-7 1935 ax-8 1992 ax-9 1999 ax-10 2019 ax-11 2034 ax-12 2047 ax-13 2246 ax-ext 2602 ax-rep 4771 ax-sep 4781 ax-nul 4789 ax-pow 4843 ax-pr 4906 ax-un 6949 ax-cnex 9992 ax-resscn 9993 ax-1cn 9994 ax-icn 9995 ax-addcl 9996 ax-addrcl 9997 ax-mulcl 9998 ax-mulrcl 9999 ax-mulcom 10000 ax-addass 10001 ax-mulass 10002 ax-distr 10003 ax-i2m1 10004 ax-1ne0 10005 ax-1rid 10006 ax-rnegex 10007 ax-rrecex 10008 ax-cnre 10009 ax-pre-lttri 10010 ax-pre-lttrn 10011 ax-pre-ltadd 10012 ax-pre-mulgt0 10013 ax-pre-sup 10014 ax-addf 10015 ax-mulf 10016 |
This theorem depends on definitions: df-bi 197 df-or 385 df-an 386 df-3or 1038 df-3an 1039 df-tru 1486 df-ex 1705 df-nf 1710 df-sb 1881 df-eu 2474 df-mo 2475 df-clab 2609 df-cleq 2615 df-clel 2618 df-nfc 2753 df-ne 2795 df-nel 2898 df-ral 2917 df-rex 2918 df-reu 2919 df-rmo 2920 df-rab 2921 df-v 3202 df-sbc 3436 df-csb 3534 df-dif 3577 df-un 3579 df-in 3581 df-ss 3588 df-pss 3590 df-nul 3916 df-if 4087 df-pw 4160 df-sn 4178 df-pr 4180 df-tp 4182 df-op 4184 df-uni 4437 df-int 4476 df-iun 4522 df-br 4654 df-opab 4713 df-mpt 4730 df-tr 4753 df-id 5024 df-eprel 5029 df-po 5035 df-so 5036 df-fr 5073 df-se 5074 df-we 5075 df-xp 5120 df-rel 5121 df-cnv 5122 df-co 5123 df-dm 5124 df-rn 5125 df-res 5126 df-ima 5127 df-pred 5680 df-ord 5726 df-on 5727 df-lim 5728 df-suc 5729 df-iota 5851 df-fun 5890 df-fn 5891 df-f 5892 df-f1 5893 df-fo 5894 df-f1o 5895 df-fv 5896 df-isom 5897 df-riota 6611 df-ov 6653 df-oprab 6654 df-mpt2 6655 df-of 6897 df-om 7066 df-1st 7168 df-2nd 7169 df-supp 7296 df-wrecs 7407 df-recs 7468 df-rdg 7506 df-1o 7560 df-oadd 7564 df-er 7742 df-map 7859 df-en 7956 df-dom 7957 df-sdom 7958 df-fin 7959 df-fsupp 8276 df-sup 8348 df-oi 8415 df-card 8765 df-pnf 10076 df-mnf 10077 df-xr 10078 df-ltxr 10079 df-le 10080 df-sub 10268 df-neg 10269 df-nn 11021 df-2 11079 df-3 11080 df-4 11081 df-5 11082 df-6 11083 df-7 11084 df-8 11085 df-9 11086 df-n0 11293 df-z 11378 df-dec 11494 df-uz 11688 df-fz 12327 df-fzo 12466 df-seq 12802 df-hash 13118 df-struct 15859 df-ndx 15860 df-slot 15861 df-base 15863 df-sets 15864 df-ress 15865 df-plusg 15954 df-mulr 15955 df-starv 15956 df-sca 15957 df-vsca 15958 df-tset 15960 df-ple 15961 df-ds 15964 df-unif 15965 df-0g 16102 df-gsum 16103 df-mgm 17242 df-sgrp 17284 df-mnd 17295 df-submnd 17336 df-grp 17425 df-minusg 17426 df-cntz 17750 df-cmn 18195 df-abl 18196 df-mgp 18490 df-ur 18502 df-ring 18549 df-cring 18550 df-psr 19356 df-mpl 19358 df-opsr 19360 df-psr1 19550 df-ply1 19552 df-cnfld 19747 df-mdeg 23815 df-deg1 23816 |
This theorem is referenced by: (None) |
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