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Mathbox for Scott Fenton |
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Mirrors > Home > MPE Home > Th. List > Mathboxes > hilbert1.1 | Structured version Visualization version GIF version |
Description: There is a line through any two distinct points. Hilbert's axiom I.1 for geometry. (Contributed by Scott Fenton, 29-Oct-2013.) (Revised by Mario Carneiro, 19-Apr-2014.) |
Ref | Expression |
---|---|
hilbert1.1 | ⊢ ((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄)) → ∃𝑥 ∈ LinesEE (𝑃 ∈ 𝑥 ∧ 𝑄 ∈ 𝑥)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | simp1 1136 | . . . . 5 ⊢ ((𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) → 𝑃 ∈ (𝔼‘𝑁)) | |
2 | simp2 1137 | . . . . 5 ⊢ ((𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) → 𝑄 ∈ (𝔼‘𝑁)) | |
3 | simp3 1138 | . . . . 5 ⊢ ((𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) → 𝑃 ≠ 𝑄) | |
4 | eqidd 2741 | . . . . 5 ⊢ ((𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) → (𝑃Line𝑄) = (𝑃Line𝑄)) | |
5 | neeq1 3009 | . . . . . . 7 ⊢ (𝑝 = 𝑃 → (𝑝 ≠ 𝑞 ↔ 𝑃 ≠ 𝑞)) | |
6 | oveq1 7455 | . . . . . . . 8 ⊢ (𝑝 = 𝑃 → (𝑝Line𝑞) = (𝑃Line𝑞)) | |
7 | 6 | eqeq2d 2751 | . . . . . . 7 ⊢ (𝑝 = 𝑃 → ((𝑃Line𝑄) = (𝑝Line𝑞) ↔ (𝑃Line𝑄) = (𝑃Line𝑞))) |
8 | 5, 7 | anbi12d 631 | . . . . . 6 ⊢ (𝑝 = 𝑃 → ((𝑝 ≠ 𝑞 ∧ (𝑃Line𝑄) = (𝑝Line𝑞)) ↔ (𝑃 ≠ 𝑞 ∧ (𝑃Line𝑄) = (𝑃Line𝑞)))) |
9 | neeq2 3010 | . . . . . . 7 ⊢ (𝑞 = 𝑄 → (𝑃 ≠ 𝑞 ↔ 𝑃 ≠ 𝑄)) | |
10 | oveq2 7456 | . . . . . . . 8 ⊢ (𝑞 = 𝑄 → (𝑃Line𝑞) = (𝑃Line𝑄)) | |
11 | 10 | eqeq2d 2751 | . . . . . . 7 ⊢ (𝑞 = 𝑄 → ((𝑃Line𝑄) = (𝑃Line𝑞) ↔ (𝑃Line𝑄) = (𝑃Line𝑄))) |
12 | 9, 11 | anbi12d 631 | . . . . . 6 ⊢ (𝑞 = 𝑄 → ((𝑃 ≠ 𝑞 ∧ (𝑃Line𝑄) = (𝑃Line𝑞)) ↔ (𝑃 ≠ 𝑄 ∧ (𝑃Line𝑄) = (𝑃Line𝑄)))) |
13 | 8, 12 | rspc2ev 3648 | . . . . 5 ⊢ ((𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ (𝑃 ≠ 𝑄 ∧ (𝑃Line𝑄) = (𝑃Line𝑄))) → ∃𝑝 ∈ (𝔼‘𝑁)∃𝑞 ∈ (𝔼‘𝑁)(𝑝 ≠ 𝑞 ∧ (𝑃Line𝑄) = (𝑝Line𝑞))) |
14 | 1, 2, 3, 4, 13 | syl112anc 1374 | . . . 4 ⊢ ((𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) → ∃𝑝 ∈ (𝔼‘𝑁)∃𝑞 ∈ (𝔼‘𝑁)(𝑝 ≠ 𝑞 ∧ (𝑃Line𝑄) = (𝑝Line𝑞))) |
15 | fveq2 6920 | . . . . . 6 ⊢ (𝑛 = 𝑁 → (𝔼‘𝑛) = (𝔼‘𝑁)) | |
16 | 15 | rexeqdv 3335 | . . . . . 6 ⊢ (𝑛 = 𝑁 → (∃𝑞 ∈ (𝔼‘𝑛)(𝑝 ≠ 𝑞 ∧ (𝑃Line𝑄) = (𝑝Line𝑞)) ↔ ∃𝑞 ∈ (𝔼‘𝑁)(𝑝 ≠ 𝑞 ∧ (𝑃Line𝑄) = (𝑝Line𝑞)))) |
17 | 15, 16 | rexeqbidv 3355 | . . . . 5 ⊢ (𝑛 = 𝑁 → (∃𝑝 ∈ (𝔼‘𝑛)∃𝑞 ∈ (𝔼‘𝑛)(𝑝 ≠ 𝑞 ∧ (𝑃Line𝑄) = (𝑝Line𝑞)) ↔ ∃𝑝 ∈ (𝔼‘𝑁)∃𝑞 ∈ (𝔼‘𝑁)(𝑝 ≠ 𝑞 ∧ (𝑃Line𝑄) = (𝑝Line𝑞)))) |
18 | 17 | rspcev 3635 | . . . 4 ⊢ ((𝑁 ∈ ℕ ∧ ∃𝑝 ∈ (𝔼‘𝑁)∃𝑞 ∈ (𝔼‘𝑁)(𝑝 ≠ 𝑞 ∧ (𝑃Line𝑄) = (𝑝Line𝑞))) → ∃𝑛 ∈ ℕ ∃𝑝 ∈ (𝔼‘𝑛)∃𝑞 ∈ (𝔼‘𝑛)(𝑝 ≠ 𝑞 ∧ (𝑃Line𝑄) = (𝑝Line𝑞))) |
19 | 14, 18 | sylan2 592 | . . 3 ⊢ ((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄)) → ∃𝑛 ∈ ℕ ∃𝑝 ∈ (𝔼‘𝑛)∃𝑞 ∈ (𝔼‘𝑛)(𝑝 ≠ 𝑞 ∧ (𝑃Line𝑄) = (𝑝Line𝑞))) |
20 | ellines 36116 | . . 3 ⊢ ((𝑃Line𝑄) ∈ LinesEE ↔ ∃𝑛 ∈ ℕ ∃𝑝 ∈ (𝔼‘𝑛)∃𝑞 ∈ (𝔼‘𝑛)(𝑝 ≠ 𝑞 ∧ (𝑃Line𝑄) = (𝑝Line𝑞))) | |
21 | 19, 20 | sylibr 234 | . 2 ⊢ ((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄)) → (𝑃Line𝑄) ∈ LinesEE) |
22 | linerflx1 36113 | . 2 ⊢ ((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄)) → 𝑃 ∈ (𝑃Line𝑄)) | |
23 | linerflx2 36115 | . 2 ⊢ ((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄)) → 𝑄 ∈ (𝑃Line𝑄)) | |
24 | eleq2 2833 | . . . 4 ⊢ (𝑥 = (𝑃Line𝑄) → (𝑃 ∈ 𝑥 ↔ 𝑃 ∈ (𝑃Line𝑄))) | |
25 | eleq2 2833 | . . . 4 ⊢ (𝑥 = (𝑃Line𝑄) → (𝑄 ∈ 𝑥 ↔ 𝑄 ∈ (𝑃Line𝑄))) | |
26 | 24, 25 | anbi12d 631 | . . 3 ⊢ (𝑥 = (𝑃Line𝑄) → ((𝑃 ∈ 𝑥 ∧ 𝑄 ∈ 𝑥) ↔ (𝑃 ∈ (𝑃Line𝑄) ∧ 𝑄 ∈ (𝑃Line𝑄)))) |
27 | 26 | rspcev 3635 | . 2 ⊢ (((𝑃Line𝑄) ∈ LinesEE ∧ (𝑃 ∈ (𝑃Line𝑄) ∧ 𝑄 ∈ (𝑃Line𝑄))) → ∃𝑥 ∈ LinesEE (𝑃 ∈ 𝑥 ∧ 𝑄 ∈ 𝑥)) |
28 | 21, 22, 23, 27 | syl12anc 836 | 1 ⊢ ((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄)) → ∃𝑥 ∈ LinesEE (𝑃 ∈ 𝑥 ∧ 𝑄 ∈ 𝑥)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 395 ∧ w3a 1087 = wceq 1537 ∈ wcel 2108 ≠ wne 2946 ∃wrex 3076 ‘cfv 6573 (class class class)co 7448 ℕcn 12293 𝔼cee 28921 Linecline2 36098 LinesEEclines2 36100 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1793 ax-4 1807 ax-5 1909 ax-6 1967 ax-7 2007 ax-8 2110 ax-9 2118 ax-10 2141 ax-11 2158 ax-12 2178 ax-ext 2711 ax-rep 5303 ax-sep 5317 ax-nul 5324 ax-pow 5383 ax-pr 5447 ax-un 7770 ax-inf2 9710 ax-cnex 11240 ax-resscn 11241 ax-1cn 11242 ax-icn 11243 ax-addcl 11244 ax-addrcl 11245 ax-mulcl 11246 ax-mulrcl 11247 ax-mulcom 11248 ax-addass 11249 ax-mulass 11250 ax-distr 11251 ax-i2m1 11252 ax-1ne0 11253 ax-1rid 11254 ax-rnegex 11255 ax-rrecex 11256 ax-cnre 11257 ax-pre-lttri 11258 ax-pre-lttrn 11259 ax-pre-ltadd 11260 ax-pre-mulgt0 11261 ax-pre-sup 11262 |
This theorem depends on definitions: df-bi 207 df-an 396 df-or 847 df-3or 1088 df-3an 1089 df-tru 1540 df-fal 1550 df-ex 1778 df-nf 1782 df-sb 2065 df-mo 2543 df-eu 2572 df-clab 2718 df-cleq 2732 df-clel 2819 df-nfc 2895 df-ne 2947 df-nel 3053 df-ral 3068 df-rex 3077 df-rmo 3388 df-reu 3389 df-rab 3444 df-v 3490 df-sbc 3805 df-csb 3922 df-dif 3979 df-un 3981 df-in 3983 df-ss 3993 df-pss 3996 df-nul 4353 df-if 4549 df-pw 4624 df-sn 4649 df-pr 4651 df-op 4655 df-uni 4932 df-int 4971 df-iun 5017 df-br 5167 df-opab 5229 df-mpt 5250 df-tr 5284 df-id 5593 df-eprel 5599 df-po 5607 df-so 5608 df-fr 5652 df-se 5653 df-we 5654 df-xp 5706 df-rel 5707 df-cnv 5708 df-co 5709 df-dm 5710 df-rn 5711 df-res 5712 df-ima 5713 df-pred 6332 df-ord 6398 df-on 6399 df-lim 6400 df-suc 6401 df-iota 6525 df-fun 6575 df-fn 6576 df-f 6577 df-f1 6578 df-fo 6579 df-f1o 6580 df-fv 6581 df-isom 6582 df-riota 7404 df-ov 7451 df-oprab 7452 df-mpo 7453 df-om 7904 df-1st 8030 df-2nd 8031 df-frecs 8322 df-wrecs 8353 df-recs 8427 df-rdg 8466 df-1o 8522 df-er 8763 df-ec 8765 df-map 8886 df-en 9004 df-dom 9005 df-sdom 9006 df-fin 9007 df-sup 9511 df-oi 9579 df-card 10008 df-pnf 11326 df-mnf 11327 df-xr 11328 df-ltxr 11329 df-le 11330 df-sub 11522 df-neg 11523 df-div 11948 df-nn 12294 df-2 12356 df-3 12357 df-n0 12554 df-z 12640 df-uz 12904 df-rp 13058 df-ico 13413 df-icc 13414 df-fz 13568 df-fzo 13712 df-seq 14053 df-exp 14113 df-hash 14380 df-cj 15148 df-re 15149 df-im 15150 df-sqrt 15284 df-abs 15285 df-clim 15534 df-sum 15735 df-ee 28924 df-btwn 28925 df-cgr 28926 df-colinear 36003 df-line2 36101 df-lines2 36103 |
This theorem is referenced by: linethrueu 36120 |
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