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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 20903 | . 2 ⊢ (((𝑅 ∈ 𝑉 ∧ 𝐼 ∈ 𝑊 ∧ 𝐽 ∈ 𝐼) ∧ 𝐾 ∈ 𝐼) → ((𝑈‘𝐽)‘𝐾) = if(𝐾 = 𝐽, 1 , 0 )) |
5 | 2 | fvexi 6770 | . . . 4 ⊢ 1 ∈ V |
6 | 3 | fvexi 6770 | . . . 4 ⊢ 0 ∈ V |
7 | ifpr 4624 | . . . 4 ⊢ (( 1 ∈ V ∧ 0 ∈ V) → if(𝐾 = 𝐽, 1 , 0 ) ∈ { 1 , 0 }) | |
8 | 5, 6, 7 | mp2an 688 | . . 3 ⊢ if(𝐾 = 𝐽, 1 , 0 ) ∈ { 1 , 0 } |
9 | prcom 4665 | . . 3 ⊢ { 1 , 0 } = { 0 , 1 } | |
10 | 8, 9 | eleqtri 2837 | . 2 ⊢ if(𝐾 = 𝐽, 1 , 0 ) ∈ { 0 , 1 } |
11 | 4, 10 | eqeltrdi 2847 | 1 ⊢ (((𝑅 ∈ 𝑉 ∧ 𝐼 ∈ 𝑊 ∧ 𝐽 ∈ 𝐼) ∧ 𝐾 ∈ 𝐼) → ((𝑈‘𝐽)‘𝐾) ∈ { 0 , 1 }) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 395 ∧ w3a 1085 = wceq 1539 ∈ wcel 2108 Vcvv 3422 ifcif 4456 {cpr 4560 ‘cfv 6418 (class class class)co 7255 0gc0g 17067 1rcur 19652 unitVec cuvc 20899 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1799 ax-4 1813 ax-5 1914 ax-6 1972 ax-7 2012 ax-8 2110 ax-9 2118 ax-10 2139 ax-11 2156 ax-12 2173 ax-ext 2709 ax-rep 5205 ax-sep 5218 ax-nul 5225 ax-pr 5347 |
This theorem depends on definitions: df-bi 206 df-an 396 df-or 844 df-3an 1087 df-tru 1542 df-fal 1552 df-ex 1784 df-nf 1788 df-sb 2069 df-mo 2540 df-eu 2569 df-clab 2716 df-cleq 2730 df-clel 2817 df-nfc 2888 df-ne 2943 df-ral 3068 df-rex 3069 df-reu 3070 df-rab 3072 df-v 3424 df-sbc 3712 df-csb 3829 df-dif 3886 df-un 3888 df-in 3890 df-ss 3900 df-nul 4254 df-if 4457 df-sn 4559 df-pr 4561 df-op 4565 df-uni 4837 df-iun 4923 df-br 5071 df-opab 5133 df-mpt 5154 df-id 5480 df-xp 5586 df-rel 5587 df-cnv 5588 df-co 5589 df-dm 5590 df-rn 5591 df-res 5592 df-ima 5593 df-iota 6376 df-fun 6420 df-fn 6421 df-f 6422 df-f1 6423 df-fo 6424 df-f1o 6425 df-fv 6426 df-ov 7258 df-oprab 7259 df-mpo 7260 df-uvc 20900 |
This theorem is referenced by: (None) |
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