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| Mirrors > Home > MPE Home > Th. List > uvcvvcl | Structured version Visualization version GIF version | ||
| Description: A coordinate of a unit vector is either 0 or 1. (Contributed by Stefan O'Rear, 3-Feb-2015.) |
| Ref | Expression |
|---|---|
| uvcfval.u | ⊢ 𝑈 = (𝑅 unitVec 𝐼) |
| uvcfval.o | ⊢ 1 = (1r‘𝑅) |
| uvcfval.z | ⊢ 0 = (0g‘𝑅) |
| Ref | Expression |
|---|---|
| uvcvvcl | ⊢ (((𝑅 ∈ 𝑉 ∧ 𝐼 ∈ 𝑊 ∧ 𝐽 ∈ 𝐼) ∧ 𝐾 ∈ 𝐼) → ((𝑈‘𝐽)‘𝐾) ∈ { 0 , 1 }) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | uvcfval.u | . . 3 ⊢ 𝑈 = (𝑅 unitVec 𝐼) | |
| 2 | uvcfval.o | . . 3 ⊢ 1 = (1r‘𝑅) | |
| 3 | uvcfval.z | . . 3 ⊢ 0 = (0g‘𝑅) | |
| 4 | 1, 2, 3 | uvcvval 22098 | . 2 ⊢ (((𝑅 ∈ 𝑉 ∧ 𝐼 ∈ 𝑊 ∧ 𝐽 ∈ 𝐼) ∧ 𝐾 ∈ 𝐼) → ((𝑈‘𝐽)‘𝐾) = if(𝐾 = 𝐽, 1 , 0 )) |
| 5 | 2 | fvexi 6900 | . . . 4 ⊢ 1 ∈ V |
| 6 | 3 | fvexi 6900 | . . . 4 ⊢ 0 ∈ V |
| 7 | ifpr 4650 | . . . 4 ⊢ (( 1 ∈ V ∧ 0 ∈ V) → if(𝐾 = 𝐽, 1 , 0 ) ∈ { 1 , 0 }) | |
| 8 | 5, 6, 7 | mp2an 705 | . . 3 ⊢ if(𝐾 = 𝐽, 1 , 0 ) ∈ { 1 , 0 } |
| 9 | prcom 4689 | . . 3 ⊢ { 1 , 0 } = { 0 , 1 } | |
| 10 | 8, 9 | eleqtri 2858 | . 2 ⊢ if(𝐾 = 𝐽, 1 , 0 ) ∈ { 0 , 1 } |
| 11 | 4, 10 | eqeltrdi 2868 | 1 ⊢ (((𝑅 ∈ 𝑉 ∧ 𝐼 ∈ 𝑊 ∧ 𝐽 ∈ 𝐼) ∧ 𝐾 ∈ 𝐼) → ((𝑈‘𝐽)‘𝐾) ∈ { 0 , 1 }) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 401 ∧ w3a 1103 = wceq 1569 ∈ wcel 2144 Vcvv 3450 ifcif 4481 {cpr 4586 ‘cfv 6539 (class class class)co 7421 0gc0g 17616 1rcur 20413 unitVec cuvc 22094 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1942 ax-6 1999 ax-7 2040 ax-8 2146 ax-9 2154 ax-10 2177 ax-11 2193 ax-12 2212 ax-ext 2732 ax-rep 5231 ax-sep 5248 ax-nul 5259 ax-pr 5390 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-nf 1816 df-sb 2099 df-mo 2564 df-eu 2594 df-clab 2739 df-cleq 2752 df-clel 2835 df-nfc 2909 df-ne 2956 df-ral 3077 df-rex 3087 df-reu 3366 df-rab 3413 df-v 3452 df-sbc 3739 df-csb 3847 df-ss 3896 df-dif 4047 df-in 4091 df-un 4151 df-nul 4279 df-if 4482 df-sn 4585 df-pr 4587 df-op 4835 df-uni 4867 df-iun 4952 df-br 5103 df-opab 5167 df-mpt 5186 df-id 5545 df-xp 5656 df-rel 5657 df-cnv 5658 df-co 5659 df-dm 5660 df-rn 5661 df-res 5662 df-ima 5663 df-iota 6494 df-fun 6541 df-fn 6542 df-f 6543 df-f1 6544 df-fo 6545 df-f1o 6546 df-fv 6547 df-ov 7424 df-oprab 7425 df-mpo 7426 df-uvc 22095 |
| This theorem is used by: (None) |
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