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Mirrors > Home > MPE Home > Th. List > abvrec | Structured version Visualization version GIF version |
Description: The absolute value distributes under reciprocal. (Contributed by Mario Carneiro, 10-Sep-2014.) |
Ref | Expression |
---|---|
abv0.a | ⊢ 𝐴 = (AbsVal‘𝑅) |
abvneg.b | ⊢ 𝐵 = (Base‘𝑅) |
abvrec.z | ⊢ 0 = (0g‘𝑅) |
abvrec.p | ⊢ 𝐼 = (invr‘𝑅) |
Ref | Expression |
---|---|
abvrec | ⊢ (((𝑅 ∈ DivRing ∧ 𝐹 ∈ 𝐴) ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≠ 0 )) → (𝐹‘(𝐼‘𝑋)) = (1 / (𝐹‘𝑋))) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | simplr 767 | . . . 4 ⊢ (((𝑅 ∈ DivRing ∧ 𝐹 ∈ 𝐴) ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≠ 0 )) → 𝐹 ∈ 𝐴) | |
2 | simprl 769 | . . . 4 ⊢ (((𝑅 ∈ DivRing ∧ 𝐹 ∈ 𝐴) ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≠ 0 )) → 𝑋 ∈ 𝐵) | |
3 | abv0.a | . . . . 5 ⊢ 𝐴 = (AbsVal‘𝑅) | |
4 | abvneg.b | . . . . 5 ⊢ 𝐵 = (Base‘𝑅) | |
5 | 3, 4 | abvcl 20129 | . . . 4 ⊢ ((𝐹 ∈ 𝐴 ∧ 𝑋 ∈ 𝐵) → (𝐹‘𝑋) ∈ ℝ) |
6 | 1, 2, 5 | syl2anc 585 | . . 3 ⊢ (((𝑅 ∈ DivRing ∧ 𝐹 ∈ 𝐴) ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≠ 0 )) → (𝐹‘𝑋) ∈ ℝ) |
7 | 6 | recnd 11049 | . 2 ⊢ (((𝑅 ∈ DivRing ∧ 𝐹 ∈ 𝐴) ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≠ 0 )) → (𝐹‘𝑋) ∈ ℂ) |
8 | simpll 765 | . . . . 5 ⊢ (((𝑅 ∈ DivRing ∧ 𝐹 ∈ 𝐴) ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≠ 0 )) → 𝑅 ∈ DivRing) | |
9 | simprr 771 | . . . . 5 ⊢ (((𝑅 ∈ DivRing ∧ 𝐹 ∈ 𝐴) ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≠ 0 )) → 𝑋 ≠ 0 ) | |
10 | abvrec.z | . . . . . 6 ⊢ 0 = (0g‘𝑅) | |
11 | abvrec.p | . . . . . 6 ⊢ 𝐼 = (invr‘𝑅) | |
12 | 4, 10, 11 | drnginvrcl 20053 | . . . . 5 ⊢ ((𝑅 ∈ DivRing ∧ 𝑋 ∈ 𝐵 ∧ 𝑋 ≠ 0 ) → (𝐼‘𝑋) ∈ 𝐵) |
13 | 8, 2, 9, 12 | syl3anc 1371 | . . . 4 ⊢ (((𝑅 ∈ DivRing ∧ 𝐹 ∈ 𝐴) ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≠ 0 )) → (𝐼‘𝑋) ∈ 𝐵) |
14 | 3, 4 | abvcl 20129 | . . . 4 ⊢ ((𝐹 ∈ 𝐴 ∧ (𝐼‘𝑋) ∈ 𝐵) → (𝐹‘(𝐼‘𝑋)) ∈ ℝ) |
15 | 1, 13, 14 | syl2anc 585 | . . 3 ⊢ (((𝑅 ∈ DivRing ∧ 𝐹 ∈ 𝐴) ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≠ 0 )) → (𝐹‘(𝐼‘𝑋)) ∈ ℝ) |
16 | 15 | recnd 11049 | . 2 ⊢ (((𝑅 ∈ DivRing ∧ 𝐹 ∈ 𝐴) ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≠ 0 )) → (𝐹‘(𝐼‘𝑋)) ∈ ℂ) |
17 | 3, 4, 10 | abvne0 20132 | . . 3 ⊢ ((𝐹 ∈ 𝐴 ∧ 𝑋 ∈ 𝐵 ∧ 𝑋 ≠ 0 ) → (𝐹‘𝑋) ≠ 0) |
18 | 1, 2, 9, 17 | syl3anc 1371 | . 2 ⊢ (((𝑅 ∈ DivRing ∧ 𝐹 ∈ 𝐴) ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≠ 0 )) → (𝐹‘𝑋) ≠ 0) |
19 | eqid 2736 | . . . . . 6 ⊢ (.r‘𝑅) = (.r‘𝑅) | |
20 | eqid 2736 | . . . . . 6 ⊢ (1r‘𝑅) = (1r‘𝑅) | |
21 | 4, 10, 19, 20, 11 | drnginvrr 20056 | . . . . 5 ⊢ ((𝑅 ∈ DivRing ∧ 𝑋 ∈ 𝐵 ∧ 𝑋 ≠ 0 ) → (𝑋(.r‘𝑅)(𝐼‘𝑋)) = (1r‘𝑅)) |
22 | 8, 2, 9, 21 | syl3anc 1371 | . . . 4 ⊢ (((𝑅 ∈ DivRing ∧ 𝐹 ∈ 𝐴) ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≠ 0 )) → (𝑋(.r‘𝑅)(𝐼‘𝑋)) = (1r‘𝑅)) |
23 | 22 | fveq2d 6808 | . . 3 ⊢ (((𝑅 ∈ DivRing ∧ 𝐹 ∈ 𝐴) ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≠ 0 )) → (𝐹‘(𝑋(.r‘𝑅)(𝐼‘𝑋))) = (𝐹‘(1r‘𝑅))) |
24 | 3, 4, 19 | abvmul 20134 | . . . 4 ⊢ ((𝐹 ∈ 𝐴 ∧ 𝑋 ∈ 𝐵 ∧ (𝐼‘𝑋) ∈ 𝐵) → (𝐹‘(𝑋(.r‘𝑅)(𝐼‘𝑋))) = ((𝐹‘𝑋) · (𝐹‘(𝐼‘𝑋)))) |
25 | 1, 2, 13, 24 | syl3anc 1371 | . . 3 ⊢ (((𝑅 ∈ DivRing ∧ 𝐹 ∈ 𝐴) ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≠ 0 )) → (𝐹‘(𝑋(.r‘𝑅)(𝐼‘𝑋))) = ((𝐹‘𝑋) · (𝐹‘(𝐼‘𝑋)))) |
26 | 3, 20 | abv1 20138 | . . . 4 ⊢ ((𝑅 ∈ DivRing ∧ 𝐹 ∈ 𝐴) → (𝐹‘(1r‘𝑅)) = 1) |
27 | 26 | adantr 482 | . . 3 ⊢ (((𝑅 ∈ DivRing ∧ 𝐹 ∈ 𝐴) ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≠ 0 )) → (𝐹‘(1r‘𝑅)) = 1) |
28 | 23, 25, 27 | 3eqtr3d 2784 | . 2 ⊢ (((𝑅 ∈ DivRing ∧ 𝐹 ∈ 𝐴) ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≠ 0 )) → ((𝐹‘𝑋) · (𝐹‘(𝐼‘𝑋))) = 1) |
29 | 7, 16, 18, 28 | mvllmuld 11853 | 1 ⊢ (((𝑅 ∈ DivRing ∧ 𝐹 ∈ 𝐴) ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≠ 0 )) → (𝐹‘(𝐼‘𝑋)) = (1 / (𝐹‘𝑋))) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 397 = wceq 1539 ∈ wcel 2104 ≠ wne 2941 ‘cfv 6458 (class class class)co 7307 ℝcr 10916 0cc0 10917 1c1 10918 · cmul 10922 / cdiv 11678 Basecbs 16957 .rcmulr 17008 0gc0g 17195 1rcur 19782 invrcinvr 19958 DivRingcdr 20036 AbsValcabv 20121 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1795 ax-4 1809 ax-5 1911 ax-6 1969 ax-7 2009 ax-8 2106 ax-9 2114 ax-10 2135 ax-11 2152 ax-12 2169 ax-ext 2707 ax-rep 5218 ax-sep 5232 ax-nul 5239 ax-pow 5297 ax-pr 5361 ax-un 7620 ax-cnex 10973 ax-resscn 10974 ax-1cn 10975 ax-icn 10976 ax-addcl 10977 ax-addrcl 10978 ax-mulcl 10979 ax-mulrcl 10980 ax-mulcom 10981 ax-addass 10982 ax-mulass 10983 ax-distr 10984 ax-i2m1 10985 ax-1ne0 10986 ax-1rid 10987 ax-rnegex 10988 ax-rrecex 10989 ax-cnre 10990 ax-pre-lttri 10991 ax-pre-lttrn 10992 ax-pre-ltadd 10993 ax-pre-mulgt0 10994 |
This theorem depends on definitions: df-bi 206 df-an 398 df-or 846 df-3or 1088 df-3an 1089 df-tru 1542 df-fal 1552 df-ex 1780 df-nf 1784 df-sb 2066 df-mo 2538 df-eu 2567 df-clab 2714 df-cleq 2728 df-clel 2814 df-nfc 2887 df-ne 2942 df-nel 3048 df-ral 3063 df-rex 3072 df-rmo 3285 df-reu 3286 df-rab 3287 df-v 3439 df-sbc 3722 df-csb 3838 df-dif 3895 df-un 3897 df-in 3899 df-ss 3909 df-pss 3911 df-nul 4263 df-if 4466 df-pw 4541 df-sn 4566 df-pr 4568 df-op 4572 df-uni 4845 df-iun 4933 df-br 5082 df-opab 5144 df-mpt 5165 df-tr 5199 df-id 5500 df-eprel 5506 df-po 5514 df-so 5515 df-fr 5555 df-we 5557 df-xp 5606 df-rel 5607 df-cnv 5608 df-co 5609 df-dm 5610 df-rn 5611 df-res 5612 df-ima 5613 df-pred 6217 df-ord 6284 df-on 6285 df-lim 6286 df-suc 6287 df-iota 6410 df-fun 6460 df-fn 6461 df-f 6462 df-f1 6463 df-fo 6464 df-f1o 6465 df-fv 6466 df-riota 7264 df-ov 7310 df-oprab 7311 df-mpo 7312 df-om 7745 df-2nd 7864 df-tpos 8073 df-frecs 8128 df-wrecs 8159 df-recs 8233 df-rdg 8272 df-er 8529 df-map 8648 df-en 8765 df-dom 8766 df-sdom 8767 df-pnf 11057 df-mnf 11058 df-xr 11059 df-ltxr 11060 df-le 11061 df-sub 11253 df-neg 11254 df-div 11679 df-nn 12020 df-2 12082 df-3 12083 df-ico 13131 df-sets 16910 df-slot 16928 df-ndx 16940 df-base 16958 df-ress 16987 df-plusg 17020 df-mulr 17021 df-0g 17197 df-mgm 18371 df-sgrp 18420 df-mnd 18431 df-grp 18625 df-minusg 18626 df-mgp 19766 df-ur 19783 df-ring 19830 df-oppr 19907 df-dvdsr 19928 df-unit 19929 df-invr 19959 df-drng 20038 df-abv 20122 |
This theorem is referenced by: abvdiv 20142 |
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