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| Mirrors > Home > HSE Home > Th. List > hvmulcan2 | Structured version Visualization version GIF version | ||
| Description: Cancellation law for scalar multiplication. (Contributed by NM, 19-May-2005.) (New usage is discouraged.) |
| Ref | Expression |
|---|---|
| hvmulcan2 | ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ (𝐶 ∈ ℋ ∧ 𝐶 ≠ 0ℎ)) → ((𝐴 ·ℎ 𝐶) = (𝐵 ·ℎ 𝐶) ↔ 𝐴 = 𝐵)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | hvmulcl 31173 | . . . . 5 ⊢ ((𝐴 ∈ ℂ ∧ 𝐶 ∈ ℋ) → (𝐴 ·ℎ 𝐶) ∈ ℋ) | |
| 2 | 1 | 3adant2 1143 | . . . 4 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ 𝐶 ∈ ℋ) → (𝐴 ·ℎ 𝐶) ∈ ℋ) |
| 3 | hvmulcl 31173 | . . . . 5 ⊢ ((𝐵 ∈ ℂ ∧ 𝐶 ∈ ℋ) → (𝐵 ·ℎ 𝐶) ∈ ℋ) | |
| 4 | 3 | 3adant1 1142 | . . . 4 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ 𝐶 ∈ ℋ) → (𝐵 ·ℎ 𝐶) ∈ ℋ) |
| 5 | hvsubeq0 31228 | . . . 4 ⊢ (((𝐴 ·ℎ 𝐶) ∈ ℋ ∧ (𝐵 ·ℎ 𝐶) ∈ ℋ) → (((𝐴 ·ℎ 𝐶) −ℎ (𝐵 ·ℎ 𝐶)) = 0ℎ ↔ (𝐴 ·ℎ 𝐶) = (𝐵 ·ℎ 𝐶))) | |
| 6 | 2, 4, 5 | syl2anc 593 | . . 3 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ 𝐶 ∈ ℋ) → (((𝐴 ·ℎ 𝐶) −ℎ (𝐵 ·ℎ 𝐶)) = 0ℎ ↔ (𝐴 ·ℎ 𝐶) = (𝐵 ·ℎ 𝐶))) |
| 7 | 6 | 3adant3r 1194 | . 2 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ (𝐶 ∈ ℋ ∧ 𝐶 ≠ 0ℎ)) → (((𝐴 ·ℎ 𝐶) −ℎ (𝐵 ·ℎ 𝐶)) = 0ℎ ↔ (𝐴 ·ℎ 𝐶) = (𝐵 ·ℎ 𝐶))) |
| 8 | hvsubdistr2 31210 | . . . . . 6 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ 𝐶 ∈ ℋ) → ((𝐴 − 𝐵) ·ℎ 𝐶) = ((𝐴 ·ℎ 𝐶) −ℎ (𝐵 ·ℎ 𝐶))) | |
| 9 | 8 | eqeq1d 2763 | . . . . 5 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ 𝐶 ∈ ℋ) → (((𝐴 − 𝐵) ·ℎ 𝐶) = 0ℎ ↔ ((𝐴 ·ℎ 𝐶) −ℎ (𝐵 ·ℎ 𝐶)) = 0ℎ)) |
| 10 | subcl 11423 | . . . . . 6 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) → (𝐴 − 𝐵) ∈ ℂ) | |
| 11 | hvmul0or 31185 | . . . . . 6 ⊢ (((𝐴 − 𝐵) ∈ ℂ ∧ 𝐶 ∈ ℋ) → (((𝐴 − 𝐵) ·ℎ 𝐶) = 0ℎ ↔ ((𝐴 − 𝐵) = 0 ∨ 𝐶 = 0ℎ))) | |
| 12 | 10, 11 | stoic3 1795 | . . . . 5 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ 𝐶 ∈ ℋ) → (((𝐴 − 𝐵) ·ℎ 𝐶) = 0ℎ ↔ ((𝐴 − 𝐵) = 0 ∨ 𝐶 = 0ℎ))) |
| 13 | 9, 12 | bitr3d 283 | . . . 4 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ 𝐶 ∈ ℋ) → (((𝐴 ·ℎ 𝐶) −ℎ (𝐵 ·ℎ 𝐶)) = 0ℎ ↔ ((𝐴 − 𝐵) = 0 ∨ 𝐶 = 0ℎ))) |
| 14 | 13 | 3adant3r 1194 | . . 3 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ (𝐶 ∈ ℋ ∧ 𝐶 ≠ 0ℎ)) → (((𝐴 ·ℎ 𝐶) −ℎ (𝐵 ·ℎ 𝐶)) = 0ℎ ↔ ((𝐴 − 𝐵) = 0 ∨ 𝐶 = 0ℎ))) |
| 15 | df-ne 2957 | . . . . . 6 ⊢ (𝐶 ≠ 0ℎ ↔ ¬ 𝐶 = 0ℎ) | |
| 16 | biorf 947 | . . . . . . 7 ⊢ (¬ 𝐶 = 0ℎ → ((𝐴 − 𝐵) = 0 ↔ (𝐶 = 0ℎ ∨ (𝐴 − 𝐵) = 0))) | |
| 17 | orcom 881 | . . . . . . 7 ⊢ ((𝐶 = 0ℎ ∨ (𝐴 − 𝐵) = 0) ↔ ((𝐴 − 𝐵) = 0 ∨ 𝐶 = 0ℎ)) | |
| 18 | 16, 17 | bitrdi 289 | . . . . . 6 ⊢ (¬ 𝐶 = 0ℎ → ((𝐴 − 𝐵) = 0 ↔ ((𝐴 − 𝐵) = 0 ∨ 𝐶 = 0ℎ))) |
| 19 | 15, 18 | sylbi 219 | . . . . 5 ⊢ (𝐶 ≠ 0ℎ → ((𝐴 − 𝐵) = 0 ↔ ((𝐴 − 𝐵) = 0 ∨ 𝐶 = 0ℎ))) |
| 20 | 19 | ad2antll 739 | . . . 4 ⊢ ((𝐵 ∈ ℂ ∧ (𝐶 ∈ ℋ ∧ 𝐶 ≠ 0ℎ)) → ((𝐴 − 𝐵) = 0 ↔ ((𝐴 − 𝐵) = 0 ∨ 𝐶 = 0ℎ))) |
| 21 | 20 | 3adant1 1142 | . . 3 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ (𝐶 ∈ ℋ ∧ 𝐶 ≠ 0ℎ)) → ((𝐴 − 𝐵) = 0 ↔ ((𝐴 − 𝐵) = 0 ∨ 𝐶 = 0ℎ))) |
| 22 | subeq0 11451 | . . . 4 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) → ((𝐴 − 𝐵) = 0 ↔ 𝐴 = 𝐵)) | |
| 23 | 22 | 3adant3 1144 | . . 3 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ (𝐶 ∈ ℋ ∧ 𝐶 ≠ 0ℎ)) → ((𝐴 − 𝐵) = 0 ↔ 𝐴 = 𝐵)) |
| 24 | 14, 21, 23 | 3bitr2d 309 | . 2 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ (𝐶 ∈ ℋ ∧ 𝐶 ≠ 0ℎ)) → (((𝐴 ·ℎ 𝐶) −ℎ (𝐵 ·ℎ 𝐶)) = 0ℎ ↔ 𝐴 = 𝐵)) |
| 25 | 7, 24 | bitr3d 283 | 1 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ (𝐶 ∈ ℋ ∧ 𝐶 ≠ 0ℎ)) → ((𝐴 ·ℎ 𝐶) = (𝐵 ·ℎ 𝐶) ↔ 𝐴 = 𝐵)) |
| Colors of variables: wff setvar class |
| Syntax hints: ¬ wn 3 → wi 4 ↔ wb 208 ∧ wa 399 ∨ wo 858 ∧ w3a 1097 = wceq 1559 ∈ wcel 2141 ≠ wne 2956 (class class class)co 7391 ℂcc 11065 0cc0 11067 − cmin 11408 ℋchba 31079 ·ℎ csm 31081 0ℎc0v 31084 −ℎ cmv 31085 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1814 ax-4 1828 ax-5 1929 ax-6 1986 ax-7 2027 ax-8 2143 ax-9 2151 ax-10 2174 ax-11 2190 ax-12 2211 ax-ext 2733 ax-sep 5243 ax-nul 5253 ax-pow 5319 ax-pr 5387 ax-un 7713 ax-resscn 11124 ax-1cn 11125 ax-icn 11126 ax-addcl 11127 ax-addrcl 11128 ax-mulcl 11129 ax-mulrcl 11130 ax-mulcom 11131 ax-addass 11132 ax-mulass 11133 ax-distr 11134 ax-i2m1 11135 ax-1ne0 11136 ax-1rid 11137 ax-rnegex 11138 ax-rrecex 11139 ax-cnre 11140 ax-pre-lttri 11141 ax-pre-lttrn 11142 ax-pre-ltadd 11143 ax-pre-mulgt0 11144 ax-hvcom 31161 ax-hvass 31162 ax-hv0cl 31163 ax-hvaddid 31164 ax-hfvmul 31165 ax-hvmulid 31166 ax-hvmulass 31167 ax-hvdistr2 31169 ax-hvmul0 31170 |
| This theorem depends on definitions: df-bi 209 df-an 400 df-or 859 df-3or 1098 df-3an 1099 df-tru 1562 df-fal 1572 df-ex 1799 df-nf 1803 df-sb 2090 df-mo 2565 df-eu 2595 df-clab 2740 df-cleq 2753 df-clel 2836 df-nfc 2910 df-ne 2957 df-nel 3061 df-ral 3076 df-rex 3086 df-rmo 3366 df-reu 3367 df-rab 3414 df-v 3455 df-sbc 3743 df-csb 3851 df-dif 3905 df-un 3907 df-in 3909 df-ss 3919 df-nul 4284 df-if 4478 df-pw 4554 df-sn 4580 df-pr 4582 df-op 4586 df-uni 4863 df-iun 4948 df-br 5098 df-opab 5160 df-mpt 5179 df-id 5538 df-po 5551 df-so 5552 df-xp 5649 df-rel 5650 df-cnv 5651 df-co 5652 df-dm 5653 df-rn 5654 df-res 5655 df-ima 5656 df-iota 6472 df-fun 6518 df-fn 6519 df-f 6520 df-f1 6521 df-fo 6522 df-f1o 6523 df-fv 6524 df-riota 7348 df-ov 7394 df-oprab 7395 df-mpo 7396 df-er 8672 df-en 8922 df-dom 8923 df-sdom 8924 df-pnf 11212 df-mnf 11213 df-xr 11214 df-ltxr 11215 df-le 11216 df-sub 11410 df-neg 11411 df-div 11839 df-hvsub 31131 |
| This theorem is referenced by: (None) |
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