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Mirrors > Home > MPE Home > Th. List > obsne0 | Structured version Visualization version GIF version |
Description: A basis element is nonzero. (Contributed by Mario Carneiro, 23-Oct-2015.) |
Ref | Expression |
---|---|
obsocv.z | ⊢ 0 = (0g‘𝑊) |
Ref | Expression |
---|---|
obsne0 | ⊢ ((𝐵 ∈ (OBasis‘𝑊) ∧ 𝐴 ∈ 𝐵) → 𝐴 ≠ 0 ) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | obsrcl 19886 | . . . . 5 ⊢ (𝐵 ∈ (OBasis‘𝑊) → 𝑊 ∈ PreHil) | |
2 | phllvec 19793 | . . . . 5 ⊢ (𝑊 ∈ PreHil → 𝑊 ∈ LVec) | |
3 | eqid 2610 | . . . . . 6 ⊢ (Scalar‘𝑊) = (Scalar‘𝑊) | |
4 | 3 | lvecdrng 18926 | . . . . 5 ⊢ (𝑊 ∈ LVec → (Scalar‘𝑊) ∈ DivRing) |
5 | 1, 2, 4 | 3syl 18 | . . . 4 ⊢ (𝐵 ∈ (OBasis‘𝑊) → (Scalar‘𝑊) ∈ DivRing) |
6 | 5 | adantr 480 | . . 3 ⊢ ((𝐵 ∈ (OBasis‘𝑊) ∧ 𝐴 ∈ 𝐵) → (Scalar‘𝑊) ∈ DivRing) |
7 | eqid 2610 | . . . 4 ⊢ (0g‘(Scalar‘𝑊)) = (0g‘(Scalar‘𝑊)) | |
8 | eqid 2610 | . . . 4 ⊢ (1r‘(Scalar‘𝑊)) = (1r‘(Scalar‘𝑊)) | |
9 | 7, 8 | drngunz 18585 | . . 3 ⊢ ((Scalar‘𝑊) ∈ DivRing → (1r‘(Scalar‘𝑊)) ≠ (0g‘(Scalar‘𝑊))) |
10 | 6, 9 | syl 17 | . 2 ⊢ ((𝐵 ∈ (OBasis‘𝑊) ∧ 𝐴 ∈ 𝐵) → (1r‘(Scalar‘𝑊)) ≠ (0g‘(Scalar‘𝑊))) |
11 | eqid 2610 | . . . . . 6 ⊢ (·𝑖‘𝑊) = (·𝑖‘𝑊) | |
12 | 11, 3, 8 | obsipid 19885 | . . . . 5 ⊢ ((𝐵 ∈ (OBasis‘𝑊) ∧ 𝐴 ∈ 𝐵) → (𝐴(·𝑖‘𝑊)𝐴) = (1r‘(Scalar‘𝑊))) |
13 | 12 | eqeq1d 2612 | . . . 4 ⊢ ((𝐵 ∈ (OBasis‘𝑊) ∧ 𝐴 ∈ 𝐵) → ((𝐴(·𝑖‘𝑊)𝐴) = (0g‘(Scalar‘𝑊)) ↔ (1r‘(Scalar‘𝑊)) = (0g‘(Scalar‘𝑊)))) |
14 | 1 | adantr 480 | . . . . 5 ⊢ ((𝐵 ∈ (OBasis‘𝑊) ∧ 𝐴 ∈ 𝐵) → 𝑊 ∈ PreHil) |
15 | eqid 2610 | . . . . . . 7 ⊢ (Base‘𝑊) = (Base‘𝑊) | |
16 | 15 | obsss 19887 | . . . . . 6 ⊢ (𝐵 ∈ (OBasis‘𝑊) → 𝐵 ⊆ (Base‘𝑊)) |
17 | 16 | sselda 3568 | . . . . 5 ⊢ ((𝐵 ∈ (OBasis‘𝑊) ∧ 𝐴 ∈ 𝐵) → 𝐴 ∈ (Base‘𝑊)) |
18 | obsocv.z | . . . . . 6 ⊢ 0 = (0g‘𝑊) | |
19 | 3, 11, 15, 7, 18 | ipeq0 19802 | . . . . 5 ⊢ ((𝑊 ∈ PreHil ∧ 𝐴 ∈ (Base‘𝑊)) → ((𝐴(·𝑖‘𝑊)𝐴) = (0g‘(Scalar‘𝑊)) ↔ 𝐴 = 0 )) |
20 | 14, 17, 19 | syl2anc 691 | . . . 4 ⊢ ((𝐵 ∈ (OBasis‘𝑊) ∧ 𝐴 ∈ 𝐵) → ((𝐴(·𝑖‘𝑊)𝐴) = (0g‘(Scalar‘𝑊)) ↔ 𝐴 = 0 )) |
21 | 13, 20 | bitr3d 269 | . . 3 ⊢ ((𝐵 ∈ (OBasis‘𝑊) ∧ 𝐴 ∈ 𝐵) → ((1r‘(Scalar‘𝑊)) = (0g‘(Scalar‘𝑊)) ↔ 𝐴 = 0 )) |
22 | 21 | necon3bid 2826 | . 2 ⊢ ((𝐵 ∈ (OBasis‘𝑊) ∧ 𝐴 ∈ 𝐵) → ((1r‘(Scalar‘𝑊)) ≠ (0g‘(Scalar‘𝑊)) ↔ 𝐴 ≠ 0 )) |
23 | 10, 22 | mpbid 221 | 1 ⊢ ((𝐵 ∈ (OBasis‘𝑊) ∧ 𝐴 ∈ 𝐵) → 𝐴 ≠ 0 ) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 195 ∧ wa 383 = wceq 1475 ∈ wcel 1977 ≠ wne 2780 ‘cfv 5804 (class class class)co 6549 Basecbs 15695 Scalarcsca 15771 ·𝑖cip 15773 0gc0g 15923 1rcur 18324 DivRingcdr 18570 LVecclvec 18923 PreHilcphl 19788 OBasiscobs 19865 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1713 ax-4 1728 ax-5 1827 ax-6 1875 ax-7 1922 ax-8 1979 ax-9 1986 ax-10 2006 ax-11 2021 ax-12 2034 ax-13 2234 ax-ext 2590 ax-rep 4699 ax-sep 4709 ax-nul 4717 ax-pow 4769 ax-pr 4833 ax-un 6847 ax-cnex 9871 ax-resscn 9872 ax-1cn 9873 ax-icn 9874 ax-addcl 9875 ax-addrcl 9876 ax-mulcl 9877 ax-mulrcl 9878 ax-mulcom 9879 ax-addass 9880 ax-mulass 9881 ax-distr 9882 ax-i2m1 9883 ax-1ne0 9884 ax-1rid 9885 ax-rnegex 9886 ax-rrecex 9887 ax-cnre 9888 ax-pre-lttri 9889 ax-pre-lttrn 9890 ax-pre-ltadd 9891 ax-pre-mulgt0 9892 |
This theorem depends on definitions: df-bi 196 df-or 384 df-an 385 df-3or 1032 df-3an 1033 df-tru 1478 df-ex 1696 df-nf 1701 df-sb 1868 df-eu 2462 df-mo 2463 df-clab 2597 df-cleq 2603 df-clel 2606 df-nfc 2740 df-ne 2782 df-nel 2783 df-ral 2901 df-rex 2902 df-reu 2903 df-rmo 2904 df-rab 2905 df-v 3175 df-sbc 3403 df-csb 3500 df-dif 3543 df-un 3545 df-in 3547 df-ss 3554 df-pss 3556 df-nul 3875 df-if 4037 df-pw 4110 df-sn 4126 df-pr 4128 df-tp 4130 df-op 4132 df-uni 4373 df-iun 4457 df-br 4584 df-opab 4644 df-mpt 4645 df-tr 4681 df-eprel 4949 df-id 4953 df-po 4959 df-so 4960 df-fr 4997 df-we 4999 df-xp 5044 df-rel 5045 df-cnv 5046 df-co 5047 df-dm 5048 df-rn 5049 df-res 5050 df-ima 5051 df-pred 5597 df-ord 5643 df-on 5644 df-lim 5645 df-suc 5646 df-iota 5768 df-fun 5806 df-fn 5807 df-f 5808 df-f1 5809 df-fo 5810 df-f1o 5811 df-fv 5812 df-riota 6511 df-ov 6552 df-oprab 6553 df-mpt2 6554 df-om 6958 df-tpos 7239 df-wrecs 7294 df-recs 7355 df-rdg 7393 df-er 7629 df-en 7842 df-dom 7843 df-sdom 7844 df-pnf 9955 df-mnf 9956 df-xr 9957 df-ltxr 9958 df-le 9959 df-sub 10147 df-neg 10148 df-nn 10898 df-2 10956 df-3 10957 df-4 10958 df-5 10959 df-6 10960 df-7 10961 df-8 10962 df-ndx 15698 df-slot 15699 df-base 15700 df-sets 15701 df-plusg 15781 df-mulr 15782 df-sca 15784 df-vsca 15785 df-ip 15786 df-0g 15925 df-mgm 17065 df-sgrp 17107 df-mnd 17118 df-grp 17248 df-ghm 17481 df-mgp 18313 df-ur 18325 df-ring 18372 df-oppr 18446 df-dvdsr 18464 df-unit 18465 df-drng 18572 df-lmod 18688 df-lmhm 18843 df-lvec 18924 df-sra 18993 df-rgmod 18994 df-phl 19790 df-obs 19868 |
This theorem is referenced by: obselocv 19891 obs2ss 19892 obslbs 19893 |
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