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| Mirrors > Home > HSE Home > Th. List > hvmulcan | Structured version Visualization version GIF version | ||
| Description: Cancellation law for scalar multiplication. (Contributed by NM, 19-May-2005.) (New usage is discouraged.) |
| Ref | Expression |
|---|---|
| hvmulcan | ⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ 𝐵 ∈ ℋ ∧ 𝐶 ∈ ℋ) → ((𝐴 ·ℎ 𝐵) = (𝐴 ·ℎ 𝐶) ↔ 𝐵 = 𝐶)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-ne 2930 | . . . . 5 ⊢ (𝐴 ≠ 0 ↔ ¬ 𝐴 = 0) | |
| 2 | biorf 936 | . . . . 5 ⊢ (¬ 𝐴 = 0 → ((𝐵 −ℎ 𝐶) = 0ℎ ↔ (𝐴 = 0 ∨ (𝐵 −ℎ 𝐶) = 0ℎ))) | |
| 3 | 1, 2 | sylbi 217 | . . . 4 ⊢ (𝐴 ≠ 0 → ((𝐵 −ℎ 𝐶) = 0ℎ ↔ (𝐴 = 0 ∨ (𝐵 −ℎ 𝐶) = 0ℎ))) |
| 4 | 3 | ad2antlr 727 | . . 3 ⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ 𝐵 ∈ ℋ) → ((𝐵 −ℎ 𝐶) = 0ℎ ↔ (𝐴 = 0 ∨ (𝐵 −ℎ 𝐶) = 0ℎ))) |
| 5 | 4 | 3adant3 1132 | . 2 ⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ 𝐵 ∈ ℋ ∧ 𝐶 ∈ ℋ) → ((𝐵 −ℎ 𝐶) = 0ℎ ↔ (𝐴 = 0 ∨ (𝐵 −ℎ 𝐶) = 0ℎ))) |
| 6 | hvsubeq0 31052 | . . 3 ⊢ ((𝐵 ∈ ℋ ∧ 𝐶 ∈ ℋ) → ((𝐵 −ℎ 𝐶) = 0ℎ ↔ 𝐵 = 𝐶)) | |
| 7 | 6 | 3adant1 1130 | . 2 ⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ 𝐵 ∈ ℋ ∧ 𝐶 ∈ ℋ) → ((𝐵 −ℎ 𝐶) = 0ℎ ↔ 𝐵 = 𝐶)) |
| 8 | hvsubdistr1 31033 | . . . . 5 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℋ ∧ 𝐶 ∈ ℋ) → (𝐴 ·ℎ (𝐵 −ℎ 𝐶)) = ((𝐴 ·ℎ 𝐵) −ℎ (𝐴 ·ℎ 𝐶))) | |
| 9 | 8 | eqeq1d 2735 | . . . 4 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℋ ∧ 𝐶 ∈ ℋ) → ((𝐴 ·ℎ (𝐵 −ℎ 𝐶)) = 0ℎ ↔ ((𝐴 ·ℎ 𝐵) −ℎ (𝐴 ·ℎ 𝐶)) = 0ℎ)) |
| 10 | hvsubcl 31001 | . . . . . 6 ⊢ ((𝐵 ∈ ℋ ∧ 𝐶 ∈ ℋ) → (𝐵 −ℎ 𝐶) ∈ ℋ) | |
| 11 | hvmul0or 31009 | . . . . . 6 ⊢ ((𝐴 ∈ ℂ ∧ (𝐵 −ℎ 𝐶) ∈ ℋ) → ((𝐴 ·ℎ (𝐵 −ℎ 𝐶)) = 0ℎ ↔ (𝐴 = 0 ∨ (𝐵 −ℎ 𝐶) = 0ℎ))) | |
| 12 | 10, 11 | sylan2 593 | . . . . 5 ⊢ ((𝐴 ∈ ℂ ∧ (𝐵 ∈ ℋ ∧ 𝐶 ∈ ℋ)) → ((𝐴 ·ℎ (𝐵 −ℎ 𝐶)) = 0ℎ ↔ (𝐴 = 0 ∨ (𝐵 −ℎ 𝐶) = 0ℎ))) |
| 13 | 12 | 3impb 1114 | . . . 4 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℋ ∧ 𝐶 ∈ ℋ) → ((𝐴 ·ℎ (𝐵 −ℎ 𝐶)) = 0ℎ ↔ (𝐴 = 0 ∨ (𝐵 −ℎ 𝐶) = 0ℎ))) |
| 14 | hvmulcl 30997 | . . . . . 6 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℋ) → (𝐴 ·ℎ 𝐵) ∈ ℋ) | |
| 15 | 14 | 3adant3 1132 | . . . . 5 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℋ ∧ 𝐶 ∈ ℋ) → (𝐴 ·ℎ 𝐵) ∈ ℋ) |
| 16 | hvmulcl 30997 | . . . . . 6 ⊢ ((𝐴 ∈ ℂ ∧ 𝐶 ∈ ℋ) → (𝐴 ·ℎ 𝐶) ∈ ℋ) | |
| 17 | 16 | 3adant2 1131 | . . . . 5 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℋ ∧ 𝐶 ∈ ℋ) → (𝐴 ·ℎ 𝐶) ∈ ℋ) |
| 18 | hvsubeq0 31052 | . . . . 5 ⊢ (((𝐴 ·ℎ 𝐵) ∈ ℋ ∧ (𝐴 ·ℎ 𝐶) ∈ ℋ) → (((𝐴 ·ℎ 𝐵) −ℎ (𝐴 ·ℎ 𝐶)) = 0ℎ ↔ (𝐴 ·ℎ 𝐵) = (𝐴 ·ℎ 𝐶))) | |
| 19 | 15, 17, 18 | syl2anc 584 | . . . 4 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℋ ∧ 𝐶 ∈ ℋ) → (((𝐴 ·ℎ 𝐵) −ℎ (𝐴 ·ℎ 𝐶)) = 0ℎ ↔ (𝐴 ·ℎ 𝐵) = (𝐴 ·ℎ 𝐶))) |
| 20 | 9, 13, 19 | 3bitr3d 309 | . . 3 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℋ ∧ 𝐶 ∈ ℋ) → ((𝐴 = 0 ∨ (𝐵 −ℎ 𝐶) = 0ℎ) ↔ (𝐴 ·ℎ 𝐵) = (𝐴 ·ℎ 𝐶))) |
| 21 | 20 | 3adant1r 1178 | . 2 ⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ 𝐵 ∈ ℋ ∧ 𝐶 ∈ ℋ) → ((𝐴 = 0 ∨ (𝐵 −ℎ 𝐶) = 0ℎ) ↔ (𝐴 ·ℎ 𝐵) = (𝐴 ·ℎ 𝐶))) |
| 22 | 5, 7, 21 | 3bitr3rd 310 | 1 ⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ 𝐵 ∈ ℋ ∧ 𝐶 ∈ ℋ) → ((𝐴 ·ℎ 𝐵) = (𝐴 ·ℎ 𝐶) ↔ 𝐵 = 𝐶)) |
| Colors of variables: wff setvar class |
| Syntax hints: ¬ wn 3 → wi 4 ↔ wb 206 ∧ wa 395 ∨ wo 847 ∧ w3a 1086 = wceq 1541 ∈ wcel 2113 ≠ wne 2929 (class class class)co 7354 ℂcc 11013 0cc0 11015 ℋchba 30903 ·ℎ csm 30905 0ℎc0v 30908 −ℎ cmv 30909 |
| 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 1968 ax-7 2009 ax-8 2115 ax-9 2123 ax-10 2146 ax-11 2162 ax-12 2182 ax-ext 2705 ax-sep 5238 ax-nul 5248 ax-pow 5307 ax-pr 5374 ax-un 7676 ax-resscn 11072 ax-1cn 11073 ax-icn 11074 ax-addcl 11075 ax-addrcl 11076 ax-mulcl 11077 ax-mulrcl 11078 ax-mulcom 11079 ax-addass 11080 ax-mulass 11081 ax-distr 11082 ax-i2m1 11083 ax-1ne0 11084 ax-1rid 11085 ax-rnegex 11086 ax-rrecex 11087 ax-cnre 11088 ax-pre-lttri 11089 ax-pre-lttrn 11090 ax-pre-ltadd 11091 ax-pre-mulgt0 11092 ax-hfvadd 30984 ax-hvcom 30985 ax-hvass 30986 ax-hv0cl 30987 ax-hvaddid 30988 ax-hfvmul 30989 ax-hvmulid 30990 ax-hvmulass 30991 ax-hvdistr1 30992 ax-hvdistr2 30993 ax-hvmul0 30994 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3or 1087 df-3an 1088 df-tru 1544 df-fal 1554 df-ex 1781 df-nf 1785 df-sb 2068 df-mo 2537 df-eu 2566 df-clab 2712 df-cleq 2725 df-clel 2808 df-nfc 2882 df-ne 2930 df-nel 3034 df-ral 3049 df-rex 3058 df-rmo 3347 df-reu 3348 df-rab 3397 df-v 3439 df-sbc 3738 df-csb 3847 df-dif 3901 df-un 3903 df-in 3905 df-ss 3915 df-nul 4283 df-if 4477 df-pw 4553 df-sn 4578 df-pr 4580 df-op 4584 df-uni 4861 df-iun 4945 df-br 5096 df-opab 5158 df-mpt 5177 df-id 5516 df-po 5529 df-so 5530 df-xp 5627 df-rel 5628 df-cnv 5629 df-co 5630 df-dm 5631 df-rn 5632 df-res 5633 df-ima 5634 df-iota 6444 df-fun 6490 df-fn 6491 df-f 6492 df-f1 6493 df-fo 6494 df-f1o 6495 df-fv 6496 df-riota 7311 df-ov 7357 df-oprab 7358 df-mpo 7359 df-er 8630 df-en 8878 df-dom 8879 df-sdom 8880 df-pnf 11157 df-mnf 11158 df-xr 11159 df-ltxr 11160 df-le 11161 df-sub 11355 df-neg 11356 df-div 11784 df-hvsub 30955 |
| This theorem is referenced by: hvsubcan 31058 hvsubcan2 31059 |
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