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Mirrors > Home > MPE Home > Th. List > Mathboxes > rrx2line | Structured version Visualization version GIF version |
Description: The line passing through the two different points 𝑋 and 𝑌 in a real Euclidean space of dimension 2. (Contributed by AV, 22-Jan-2023.) (Proof shortened by AV, 13-Feb-2023.) |
Ref | Expression |
---|---|
rrx2line.i | ⊢ 𝐼 = {1, 2} |
rrx2line.e | ⊢ 𝐸 = (ℝ^‘𝐼) |
rrx2line.b | ⊢ 𝑃 = (ℝ ↑m 𝐼) |
rrx2line.l | ⊢ 𝐿 = (LineM‘𝐸) |
Ref | Expression |
---|---|
rrx2line | ⊢ ((𝑋 ∈ 𝑃 ∧ 𝑌 ∈ 𝑃 ∧ 𝑋 ≠ 𝑌) → (𝑋𝐿𝑌) = {𝑝 ∈ 𝑃 ∣ ∃𝑡 ∈ ℝ ((𝑝‘1) = (((1 − 𝑡) · (𝑋‘1)) + (𝑡 · (𝑌‘1))) ∧ (𝑝‘2) = (((1 − 𝑡) · (𝑋‘2)) + (𝑡 · (𝑌‘2))))}) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | rrx2line.i | . . . 4 ⊢ 𝐼 = {1, 2} | |
2 | prfi 9059 | . . . 4 ⊢ {1, 2} ∈ Fin | |
3 | 1, 2 | eqeltri 2837 | . . 3 ⊢ 𝐼 ∈ Fin |
4 | rrx2line.e | . . . 4 ⊢ 𝐸 = (ℝ^‘𝐼) | |
5 | rrx2line.b | . . . 4 ⊢ 𝑃 = (ℝ ↑m 𝐼) | |
6 | rrx2line.l | . . . 4 ⊢ 𝐿 = (LineM‘𝐸) | |
7 | 4, 5, 6 | rrxlinec 46043 | . . 3 ⊢ ((𝐼 ∈ Fin ∧ (𝑋 ∈ 𝑃 ∧ 𝑌 ∈ 𝑃 ∧ 𝑋 ≠ 𝑌)) → (𝑋𝐿𝑌) = {𝑝 ∈ 𝑃 ∣ ∃𝑡 ∈ ℝ ∀𝑖 ∈ 𝐼 (𝑝‘𝑖) = (((1 − 𝑡) · (𝑋‘𝑖)) + (𝑡 · (𝑌‘𝑖)))}) |
8 | 3, 7 | mpan 687 | . 2 ⊢ ((𝑋 ∈ 𝑃 ∧ 𝑌 ∈ 𝑃 ∧ 𝑋 ≠ 𝑌) → (𝑋𝐿𝑌) = {𝑝 ∈ 𝑃 ∣ ∃𝑡 ∈ ℝ ∀𝑖 ∈ 𝐼 (𝑝‘𝑖) = (((1 − 𝑡) · (𝑋‘𝑖)) + (𝑡 · (𝑌‘𝑖)))}) |
9 | 1 | a1i 11 | . . . . . 6 ⊢ ((((𝑋 ∈ 𝑃 ∧ 𝑌 ∈ 𝑃 ∧ 𝑋 ≠ 𝑌) ∧ 𝑝 ∈ 𝑃) ∧ 𝑡 ∈ ℝ) → 𝐼 = {1, 2}) |
10 | 9 | raleqdv 3347 | . . . . 5 ⊢ ((((𝑋 ∈ 𝑃 ∧ 𝑌 ∈ 𝑃 ∧ 𝑋 ≠ 𝑌) ∧ 𝑝 ∈ 𝑃) ∧ 𝑡 ∈ ℝ) → (∀𝑖 ∈ 𝐼 (𝑝‘𝑖) = (((1 − 𝑡) · (𝑋‘𝑖)) + (𝑡 · (𝑌‘𝑖))) ↔ ∀𝑖 ∈ {1, 2} (𝑝‘𝑖) = (((1 − 𝑡) · (𝑋‘𝑖)) + (𝑡 · (𝑌‘𝑖))))) |
11 | 1ex 10964 | . . . . . 6 ⊢ 1 ∈ V | |
12 | 2ex 12042 | . . . . . 6 ⊢ 2 ∈ V | |
13 | fveq2 6769 | . . . . . . 7 ⊢ (𝑖 = 1 → (𝑝‘𝑖) = (𝑝‘1)) | |
14 | fveq2 6769 | . . . . . . . . 9 ⊢ (𝑖 = 1 → (𝑋‘𝑖) = (𝑋‘1)) | |
15 | 14 | oveq2d 7285 | . . . . . . . 8 ⊢ (𝑖 = 1 → ((1 − 𝑡) · (𝑋‘𝑖)) = ((1 − 𝑡) · (𝑋‘1))) |
16 | fveq2 6769 | . . . . . . . . 9 ⊢ (𝑖 = 1 → (𝑌‘𝑖) = (𝑌‘1)) | |
17 | 16 | oveq2d 7285 | . . . . . . . 8 ⊢ (𝑖 = 1 → (𝑡 · (𝑌‘𝑖)) = (𝑡 · (𝑌‘1))) |
18 | 15, 17 | oveq12d 7287 | . . . . . . 7 ⊢ (𝑖 = 1 → (((1 − 𝑡) · (𝑋‘𝑖)) + (𝑡 · (𝑌‘𝑖))) = (((1 − 𝑡) · (𝑋‘1)) + (𝑡 · (𝑌‘1)))) |
19 | 13, 18 | eqeq12d 2756 | . . . . . 6 ⊢ (𝑖 = 1 → ((𝑝‘𝑖) = (((1 − 𝑡) · (𝑋‘𝑖)) + (𝑡 · (𝑌‘𝑖))) ↔ (𝑝‘1) = (((1 − 𝑡) · (𝑋‘1)) + (𝑡 · (𝑌‘1))))) |
20 | fveq2 6769 | . . . . . . 7 ⊢ (𝑖 = 2 → (𝑝‘𝑖) = (𝑝‘2)) | |
21 | fveq2 6769 | . . . . . . . . 9 ⊢ (𝑖 = 2 → (𝑋‘𝑖) = (𝑋‘2)) | |
22 | 21 | oveq2d 7285 | . . . . . . . 8 ⊢ (𝑖 = 2 → ((1 − 𝑡) · (𝑋‘𝑖)) = ((1 − 𝑡) · (𝑋‘2))) |
23 | fveq2 6769 | . . . . . . . . 9 ⊢ (𝑖 = 2 → (𝑌‘𝑖) = (𝑌‘2)) | |
24 | 23 | oveq2d 7285 | . . . . . . . 8 ⊢ (𝑖 = 2 → (𝑡 · (𝑌‘𝑖)) = (𝑡 · (𝑌‘2))) |
25 | 22, 24 | oveq12d 7287 | . . . . . . 7 ⊢ (𝑖 = 2 → (((1 − 𝑡) · (𝑋‘𝑖)) + (𝑡 · (𝑌‘𝑖))) = (((1 − 𝑡) · (𝑋‘2)) + (𝑡 · (𝑌‘2)))) |
26 | 20, 25 | eqeq12d 2756 | . . . . . 6 ⊢ (𝑖 = 2 → ((𝑝‘𝑖) = (((1 − 𝑡) · (𝑋‘𝑖)) + (𝑡 · (𝑌‘𝑖))) ↔ (𝑝‘2) = (((1 − 𝑡) · (𝑋‘2)) + (𝑡 · (𝑌‘2))))) |
27 | 11, 12, 19, 26 | ralpr 4642 | . . . . 5 ⊢ (∀𝑖 ∈ {1, 2} (𝑝‘𝑖) = (((1 − 𝑡) · (𝑋‘𝑖)) + (𝑡 · (𝑌‘𝑖))) ↔ ((𝑝‘1) = (((1 − 𝑡) · (𝑋‘1)) + (𝑡 · (𝑌‘1))) ∧ (𝑝‘2) = (((1 − 𝑡) · (𝑋‘2)) + (𝑡 · (𝑌‘2))))) |
28 | 10, 27 | bitrdi 287 | . . . 4 ⊢ ((((𝑋 ∈ 𝑃 ∧ 𝑌 ∈ 𝑃 ∧ 𝑋 ≠ 𝑌) ∧ 𝑝 ∈ 𝑃) ∧ 𝑡 ∈ ℝ) → (∀𝑖 ∈ 𝐼 (𝑝‘𝑖) = (((1 − 𝑡) · (𝑋‘𝑖)) + (𝑡 · (𝑌‘𝑖))) ↔ ((𝑝‘1) = (((1 − 𝑡) · (𝑋‘1)) + (𝑡 · (𝑌‘1))) ∧ (𝑝‘2) = (((1 − 𝑡) · (𝑋‘2)) + (𝑡 · (𝑌‘2)))))) |
29 | 28 | rexbidva 3227 | . . 3 ⊢ (((𝑋 ∈ 𝑃 ∧ 𝑌 ∈ 𝑃 ∧ 𝑋 ≠ 𝑌) ∧ 𝑝 ∈ 𝑃) → (∃𝑡 ∈ ℝ ∀𝑖 ∈ 𝐼 (𝑝‘𝑖) = (((1 − 𝑡) · (𝑋‘𝑖)) + (𝑡 · (𝑌‘𝑖))) ↔ ∃𝑡 ∈ ℝ ((𝑝‘1) = (((1 − 𝑡) · (𝑋‘1)) + (𝑡 · (𝑌‘1))) ∧ (𝑝‘2) = (((1 − 𝑡) · (𝑋‘2)) + (𝑡 · (𝑌‘2)))))) |
30 | 29 | rabbidva 3411 | . 2 ⊢ ((𝑋 ∈ 𝑃 ∧ 𝑌 ∈ 𝑃 ∧ 𝑋 ≠ 𝑌) → {𝑝 ∈ 𝑃 ∣ ∃𝑡 ∈ ℝ ∀𝑖 ∈ 𝐼 (𝑝‘𝑖) = (((1 − 𝑡) · (𝑋‘𝑖)) + (𝑡 · (𝑌‘𝑖)))} = {𝑝 ∈ 𝑃 ∣ ∃𝑡 ∈ ℝ ((𝑝‘1) = (((1 − 𝑡) · (𝑋‘1)) + (𝑡 · (𝑌‘1))) ∧ (𝑝‘2) = (((1 − 𝑡) · (𝑋‘2)) + (𝑡 · (𝑌‘2))))}) |
31 | 8, 30 | eqtrd 2780 | 1 ⊢ ((𝑋 ∈ 𝑃 ∧ 𝑌 ∈ 𝑃 ∧ 𝑋 ≠ 𝑌) → (𝑋𝐿𝑌) = {𝑝 ∈ 𝑃 ∣ ∃𝑡 ∈ ℝ ((𝑝‘1) = (((1 − 𝑡) · (𝑋‘1)) + (𝑡 · (𝑌‘1))) ∧ (𝑝‘2) = (((1 − 𝑡) · (𝑋‘2)) + (𝑡 · (𝑌‘2))))}) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 396 ∧ w3a 1086 = wceq 1542 ∈ wcel 2110 ≠ wne 2945 ∀wral 3066 ∃wrex 3067 {crab 3070 {cpr 4569 ‘cfv 6431 (class class class)co 7269 ↑m cmap 8590 Fincfn 8708 ℝcr 10863 1c1 10865 + caddc 10867 · cmul 10869 − cmin 11197 2c2 12020 ℝ^crrx 24537 LineMcline 46034 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1802 ax-4 1816 ax-5 1917 ax-6 1975 ax-7 2015 ax-8 2112 ax-9 2120 ax-10 2141 ax-11 2158 ax-12 2175 ax-ext 2711 ax-rep 5214 ax-sep 5227 ax-nul 5234 ax-pow 5292 ax-pr 5356 ax-un 7580 ax-cnex 10920 ax-resscn 10921 ax-1cn 10922 ax-icn 10923 ax-addcl 10924 ax-addrcl 10925 ax-mulcl 10926 ax-mulrcl 10927 ax-mulcom 10928 ax-addass 10929 ax-mulass 10930 ax-distr 10931 ax-i2m1 10932 ax-1ne0 10933 ax-1rid 10934 ax-rnegex 10935 ax-rrecex 10936 ax-cnre 10937 ax-pre-lttri 10938 ax-pre-lttrn 10939 ax-pre-ltadd 10940 ax-pre-mulgt0 10941 ax-pre-sup 10942 ax-addf 10943 ax-mulf 10944 |
This theorem depends on definitions: df-bi 206 df-an 397 df-or 845 df-3or 1087 df-3an 1088 df-tru 1545 df-fal 1555 df-ex 1787 df-nf 1791 df-sb 2072 df-mo 2542 df-eu 2571 df-clab 2718 df-cleq 2732 df-clel 2818 df-nfc 2891 df-ne 2946 df-nel 3052 df-ral 3071 df-rex 3072 df-reu 3073 df-rmo 3074 df-rab 3075 df-v 3433 df-sbc 3721 df-csb 3838 df-dif 3895 df-un 3897 df-in 3899 df-ss 3909 df-pss 3911 df-nul 4263 df-if 4466 df-pw 4541 df-sn 4568 df-pr 4570 df-tp 4572 df-op 4574 df-uni 4846 df-iun 4932 df-br 5080 df-opab 5142 df-mpt 5163 df-tr 5197 df-id 5489 df-eprel 5495 df-po 5503 df-so 5504 df-fr 5544 df-we 5546 df-xp 5595 df-rel 5596 df-cnv 5597 df-co 5598 df-dm 5599 df-rn 5600 df-res 5601 df-ima 5602 df-pred 6200 df-ord 6267 df-on 6268 df-lim 6269 df-suc 6270 df-iota 6389 df-fun 6433 df-fn 6434 df-f 6435 df-f1 6436 df-fo 6437 df-f1o 6438 df-fv 6439 df-riota 7226 df-ov 7272 df-oprab 7273 df-mpo 7274 df-of 7525 df-om 7702 df-1st 7818 df-2nd 7819 df-supp 7963 df-tpos 8027 df-frecs 8082 df-wrecs 8113 df-recs 8187 df-rdg 8226 df-1o 8282 df-er 8473 df-map 8592 df-ixp 8661 df-en 8709 df-dom 8710 df-sdom 8711 df-fin 8712 df-fsupp 9099 df-sup 9171 df-pnf 11004 df-mnf 11005 df-xr 11006 df-ltxr 11007 df-le 11008 df-sub 11199 df-neg 11200 df-div 11625 df-nn 11966 df-2 12028 df-3 12029 df-4 12030 df-5 12031 df-6 12032 df-7 12033 df-8 12034 df-9 12035 df-n0 12226 df-z 12312 df-dec 12429 df-uz 12574 df-rp 12722 df-fz 13231 df-seq 13712 df-exp 13773 df-cj 14800 df-re 14801 df-im 14802 df-sqrt 14936 df-abs 14937 df-struct 16838 df-sets 16855 df-slot 16873 df-ndx 16885 df-base 16903 df-ress 16932 df-plusg 16965 df-mulr 16966 df-starv 16967 df-sca 16968 df-vsca 16969 df-ip 16970 df-tset 16971 df-ple 16972 df-ds 16974 df-unif 16975 df-hom 16976 df-cco 16977 df-0g 17142 df-prds 17148 df-pws 17150 df-mgm 18316 df-sgrp 18365 df-mnd 18376 df-mhm 18420 df-grp 18570 df-minusg 18571 df-sbg 18572 df-subg 18742 df-ghm 18822 df-cmn 19378 df-mgp 19711 df-ur 19728 df-ring 19775 df-cring 19776 df-oppr 19852 df-dvdsr 19873 df-unit 19874 df-invr 19904 df-dvr 19915 df-rnghom 19949 df-drng 19983 df-field 19984 df-subrg 20012 df-staf 20095 df-srng 20096 df-lmod 20115 df-lss 20184 df-sra 20424 df-rgmod 20425 df-cnfld 20588 df-refld 20800 df-dsmm 20929 df-frlm 20944 df-tng 23730 df-tcph 24323 df-rrx 24539 df-line 46036 |
This theorem is referenced by: rrx2vlinest 46048 rrx2linest 46049 rrx2linesl 46050 |
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