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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 765 | . . . 4 ⊢ (((𝑅 ∈ DivRing ∧ 𝐹 ∈ 𝐴) ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≠ 0 )) → 𝐹 ∈ 𝐴) | |
2 | simprl 767 | . . . 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 20065 | . . . 4 ⊢ ((𝐹 ∈ 𝐴 ∧ 𝑋 ∈ 𝐵) → (𝐹‘𝑋) ∈ ℝ) |
6 | 1, 2, 5 | syl2anc 583 | . . 3 ⊢ (((𝑅 ∈ DivRing ∧ 𝐹 ∈ 𝐴) ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≠ 0 )) → (𝐹‘𝑋) ∈ ℝ) |
7 | 6 | recnd 10987 | . 2 ⊢ (((𝑅 ∈ DivRing ∧ 𝐹 ∈ 𝐴) ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≠ 0 )) → (𝐹‘𝑋) ∈ ℂ) |
8 | simpll 763 | . . . . 5 ⊢ (((𝑅 ∈ DivRing ∧ 𝐹 ∈ 𝐴) ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≠ 0 )) → 𝑅 ∈ DivRing) | |
9 | simprr 769 | . . . . 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 19989 | . . . . 5 ⊢ ((𝑅 ∈ DivRing ∧ 𝑋 ∈ 𝐵 ∧ 𝑋 ≠ 0 ) → (𝐼‘𝑋) ∈ 𝐵) |
13 | 8, 2, 9, 12 | syl3anc 1369 | . . . 4 ⊢ (((𝑅 ∈ DivRing ∧ 𝐹 ∈ 𝐴) ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≠ 0 )) → (𝐼‘𝑋) ∈ 𝐵) |
14 | 3, 4 | abvcl 20065 | . . . 4 ⊢ ((𝐹 ∈ 𝐴 ∧ (𝐼‘𝑋) ∈ 𝐵) → (𝐹‘(𝐼‘𝑋)) ∈ ℝ) |
15 | 1, 13, 14 | syl2anc 583 | . . 3 ⊢ (((𝑅 ∈ DivRing ∧ 𝐹 ∈ 𝐴) ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≠ 0 )) → (𝐹‘(𝐼‘𝑋)) ∈ ℝ) |
16 | 15 | recnd 10987 | . 2 ⊢ (((𝑅 ∈ DivRing ∧ 𝐹 ∈ 𝐴) ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≠ 0 )) → (𝐹‘(𝐼‘𝑋)) ∈ ℂ) |
17 | 3, 4, 10 | abvne0 20068 | . . 3 ⊢ ((𝐹 ∈ 𝐴 ∧ 𝑋 ∈ 𝐵 ∧ 𝑋 ≠ 0 ) → (𝐹‘𝑋) ≠ 0) |
18 | 1, 2, 9, 17 | syl3anc 1369 | . 2 ⊢ (((𝑅 ∈ DivRing ∧ 𝐹 ∈ 𝐴) ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≠ 0 )) → (𝐹‘𝑋) ≠ 0) |
19 | eqid 2739 | . . . . . 6 ⊢ (.r‘𝑅) = (.r‘𝑅) | |
20 | eqid 2739 | . . . . . 6 ⊢ (1r‘𝑅) = (1r‘𝑅) | |
21 | 4, 10, 19, 20, 11 | drnginvrr 19992 | . . . . 5 ⊢ ((𝑅 ∈ DivRing ∧ 𝑋 ∈ 𝐵 ∧ 𝑋 ≠ 0 ) → (𝑋(.r‘𝑅)(𝐼‘𝑋)) = (1r‘𝑅)) |
22 | 8, 2, 9, 21 | syl3anc 1369 | . . . 4 ⊢ (((𝑅 ∈ DivRing ∧ 𝐹 ∈ 𝐴) ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≠ 0 )) → (𝑋(.r‘𝑅)(𝐼‘𝑋)) = (1r‘𝑅)) |
23 | 22 | fveq2d 6772 | . . 3 ⊢ (((𝑅 ∈ DivRing ∧ 𝐹 ∈ 𝐴) ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≠ 0 )) → (𝐹‘(𝑋(.r‘𝑅)(𝐼‘𝑋))) = (𝐹‘(1r‘𝑅))) |
24 | 3, 4, 19 | abvmul 20070 | . . . 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 1369 | . . 3 ⊢ (((𝑅 ∈ DivRing ∧ 𝐹 ∈ 𝐴) ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≠ 0 )) → (𝐹‘(𝑋(.r‘𝑅)(𝐼‘𝑋))) = ((𝐹‘𝑋) · (𝐹‘(𝐼‘𝑋)))) |
26 | 3, 20 | abv1 20074 | . . . 4 ⊢ ((𝑅 ∈ DivRing ∧ 𝐹 ∈ 𝐴) → (𝐹‘(1r‘𝑅)) = 1) |
27 | 26 | adantr 480 | . . 3 ⊢ (((𝑅 ∈ DivRing ∧ 𝐹 ∈ 𝐴) ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≠ 0 )) → (𝐹‘(1r‘𝑅)) = 1) |
28 | 23, 25, 27 | 3eqtr3d 2787 | . 2 ⊢ (((𝑅 ∈ DivRing ∧ 𝐹 ∈ 𝐴) ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≠ 0 )) → ((𝐹‘𝑋) · (𝐹‘(𝐼‘𝑋))) = 1) |
29 | 7, 16, 18, 28 | mvllmuld 11790 | 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 395 = wceq 1541 ∈ wcel 2109 ≠ wne 2944 ‘cfv 6430 (class class class)co 7268 ℝcr 10854 0cc0 10855 1c1 10856 · cmul 10860 / cdiv 11615 Basecbs 16893 .rcmulr 16944 0gc0g 17131 1rcur 19718 invrcinvr 19894 DivRingcdr 19972 AbsValcabv 20057 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1801 ax-4 1815 ax-5 1916 ax-6 1974 ax-7 2014 ax-8 2111 ax-9 2119 ax-10 2140 ax-11 2157 ax-12 2174 ax-ext 2710 ax-rep 5213 ax-sep 5226 ax-nul 5233 ax-pow 5291 ax-pr 5355 ax-un 7579 ax-cnex 10911 ax-resscn 10912 ax-1cn 10913 ax-icn 10914 ax-addcl 10915 ax-addrcl 10916 ax-mulcl 10917 ax-mulrcl 10918 ax-mulcom 10919 ax-addass 10920 ax-mulass 10921 ax-distr 10922 ax-i2m1 10923 ax-1ne0 10924 ax-1rid 10925 ax-rnegex 10926 ax-rrecex 10927 ax-cnre 10928 ax-pre-lttri 10929 ax-pre-lttrn 10930 ax-pre-ltadd 10931 ax-pre-mulgt0 10932 |
This theorem depends on definitions: df-bi 206 df-an 396 df-or 844 df-3or 1086 df-3an 1087 df-tru 1544 df-fal 1554 df-ex 1786 df-nf 1790 df-sb 2071 df-mo 2541 df-eu 2570 df-clab 2717 df-cleq 2731 df-clel 2817 df-nfc 2890 df-ne 2945 df-nel 3051 df-ral 3070 df-rex 3071 df-reu 3072 df-rmo 3073 df-rab 3074 df-v 3432 df-sbc 3720 df-csb 3837 df-dif 3894 df-un 3896 df-in 3898 df-ss 3908 df-pss 3910 df-nul 4262 df-if 4465 df-pw 4540 df-sn 4567 df-pr 4569 df-tp 4571 df-op 4573 df-uni 4845 df-iun 4931 df-br 5079 df-opab 5141 df-mpt 5162 df-tr 5196 df-id 5488 df-eprel 5494 df-po 5502 df-so 5503 df-fr 5543 df-we 5545 df-xp 5594 df-rel 5595 df-cnv 5596 df-co 5597 df-dm 5598 df-rn 5599 df-res 5600 df-ima 5601 df-pred 6199 df-ord 6266 df-on 6267 df-lim 6268 df-suc 6269 df-iota 6388 df-fun 6432 df-fn 6433 df-f 6434 df-f1 6435 df-fo 6436 df-f1o 6437 df-fv 6438 df-riota 7225 df-ov 7271 df-oprab 7272 df-mpo 7273 df-om 7701 df-2nd 7818 df-tpos 8026 df-frecs 8081 df-wrecs 8112 df-recs 8186 df-rdg 8225 df-er 8472 df-map 8591 df-en 8708 df-dom 8709 df-sdom 8710 df-pnf 10995 df-mnf 10996 df-xr 10997 df-ltxr 10998 df-le 10999 df-sub 11190 df-neg 11191 df-div 11616 df-nn 11957 df-2 12019 df-3 12020 df-ico 13067 df-sets 16846 df-slot 16864 df-ndx 16876 df-base 16894 df-ress 16923 df-plusg 16956 df-mulr 16957 df-0g 17133 df-mgm 18307 df-sgrp 18356 df-mnd 18367 df-grp 18561 df-minusg 18562 df-mgp 19702 df-ur 19719 df-ring 19766 df-oppr 19843 df-dvdsr 19864 df-unit 19865 df-invr 19895 df-drng 19974 df-abv 20058 |
This theorem is referenced by: abvdiv 20078 |
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