![]() |
Mathbox for Scott Fenton |
< Previous
Next >
Nearby theorems |
|
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 1131 | . . . . 5 ⊢ ((𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) → 𝑃 ∈ (𝔼‘𝑁)) | |
2 | simp2 1132 | . . . . 5 ⊢ ((𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) → 𝑄 ∈ (𝔼‘𝑁)) | |
3 | simp3 1133 | . . . . 5 ⊢ ((𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) → 𝑃 ≠ 𝑄) | |
4 | eqidd 2761 | . . . . 5 ⊢ ((𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) → (𝑃Line𝑄) = (𝑃Line𝑄)) | |
5 | neeq1 2994 | . . . . . . 7 ⊢ (𝑝 = 𝑃 → (𝑝 ≠ 𝑞 ↔ 𝑃 ≠ 𝑞)) | |
6 | oveq1 6821 | . . . . . . . 8 ⊢ (𝑝 = 𝑃 → (𝑝Line𝑞) = (𝑃Line𝑞)) | |
7 | 6 | eqeq2d 2770 | . . . . . . 7 ⊢ (𝑝 = 𝑃 → ((𝑃Line𝑄) = (𝑝Line𝑞) ↔ (𝑃Line𝑄) = (𝑃Line𝑞))) |
8 | 5, 7 | anbi12d 749 | . . . . . 6 ⊢ (𝑝 = 𝑃 → ((𝑝 ≠ 𝑞 ∧ (𝑃Line𝑄) = (𝑝Line𝑞)) ↔ (𝑃 ≠ 𝑞 ∧ (𝑃Line𝑄) = (𝑃Line𝑞)))) |
9 | neeq2 2995 | . . . . . . 7 ⊢ (𝑞 = 𝑄 → (𝑃 ≠ 𝑞 ↔ 𝑃 ≠ 𝑄)) | |
10 | oveq2 6822 | . . . . . . . 8 ⊢ (𝑞 = 𝑄 → (𝑃Line𝑞) = (𝑃Line𝑄)) | |
11 | 10 | eqeq2d 2770 | . . . . . . 7 ⊢ (𝑞 = 𝑄 → ((𝑃Line𝑄) = (𝑃Line𝑞) ↔ (𝑃Line𝑄) = (𝑃Line𝑄))) |
12 | 9, 11 | anbi12d 749 | . . . . . 6 ⊢ (𝑞 = 𝑄 → ((𝑃 ≠ 𝑞 ∧ (𝑃Line𝑄) = (𝑃Line𝑞)) ↔ (𝑃 ≠ 𝑄 ∧ (𝑃Line𝑄) = (𝑃Line𝑄)))) |
13 | 8, 12 | rspc2ev 3463 | . . . . 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 1481 | . . . 4 ⊢ ((𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) → ∃𝑝 ∈ (𝔼‘𝑁)∃𝑞 ∈ (𝔼‘𝑁)(𝑝 ≠ 𝑞 ∧ (𝑃Line𝑄) = (𝑝Line𝑞))) |
15 | fveq2 6353 | . . . . . 6 ⊢ (𝑛 = 𝑁 → (𝔼‘𝑛) = (𝔼‘𝑁)) | |
16 | 15 | rexeqdv 3284 | . . . . . 6 ⊢ (𝑛 = 𝑁 → (∃𝑞 ∈ (𝔼‘𝑛)(𝑝 ≠ 𝑞 ∧ (𝑃Line𝑄) = (𝑝Line𝑞)) ↔ ∃𝑞 ∈ (𝔼‘𝑁)(𝑝 ≠ 𝑞 ∧ (𝑃Line𝑄) = (𝑝Line𝑞)))) |
17 | 15, 16 | rexeqbidv 3292 | . . . . 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 3449 | . . . 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 492 | . . 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 32586 | . . 3 ⊢ ((𝑃Line𝑄) ∈ LinesEE ↔ ∃𝑛 ∈ ℕ ∃𝑝 ∈ (𝔼‘𝑛)∃𝑞 ∈ (𝔼‘𝑛)(𝑝 ≠ 𝑞 ∧ (𝑃Line𝑄) = (𝑝Line𝑞))) | |
21 | 19, 20 | sylibr 224 | . 2 ⊢ ((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄)) → (𝑃Line𝑄) ∈ LinesEE) |
22 | linerflx1 32583 | . 2 ⊢ ((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄)) → 𝑃 ∈ (𝑃Line𝑄)) | |
23 | linerflx2 32585 | . 2 ⊢ ((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄)) → 𝑄 ∈ (𝑃Line𝑄)) | |
24 | eleq2 2828 | . . . 4 ⊢ (𝑥 = (𝑃Line𝑄) → (𝑃 ∈ 𝑥 ↔ 𝑃 ∈ (𝑃Line𝑄))) | |
25 | eleq2 2828 | . . . 4 ⊢ (𝑥 = (𝑃Line𝑄) → (𝑄 ∈ 𝑥 ↔ 𝑄 ∈ (𝑃Line𝑄))) | |
26 | 24, 25 | anbi12d 749 | . . 3 ⊢ (𝑥 = (𝑃Line𝑄) → ((𝑃 ∈ 𝑥 ∧ 𝑄 ∈ 𝑥) ↔ (𝑃 ∈ (𝑃Line𝑄) ∧ 𝑄 ∈ (𝑃Line𝑄)))) |
27 | 26 | rspcev 3449 | . 2 ⊢ (((𝑃Line𝑄) ∈ LinesEE ∧ (𝑃 ∈ (𝑃Line𝑄) ∧ 𝑄 ∈ (𝑃Line𝑄))) → ∃𝑥 ∈ LinesEE (𝑃 ∈ 𝑥 ∧ 𝑄 ∈ 𝑥)) |
28 | 21, 22, 23, 27 | syl12anc 1475 | 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 383 ∧ w3a 1072 = wceq 1632 ∈ wcel 2139 ≠ wne 2932 ∃wrex 3051 ‘cfv 6049 (class class class)co 6814 ℕcn 11232 𝔼cee 25988 Linecline2 32568 LinesEEclines2 32570 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1871 ax-4 1886 ax-5 1988 ax-6 2054 ax-7 2090 ax-8 2141 ax-9 2148 ax-10 2168 ax-11 2183 ax-12 2196 ax-13 2391 ax-ext 2740 ax-rep 4923 ax-sep 4933 ax-nul 4941 ax-pow 4992 ax-pr 5055 ax-un 7115 ax-inf2 8713 ax-cnex 10204 ax-resscn 10205 ax-1cn 10206 ax-icn 10207 ax-addcl 10208 ax-addrcl 10209 ax-mulcl 10210 ax-mulrcl 10211 ax-mulcom 10212 ax-addass 10213 ax-mulass 10214 ax-distr 10215 ax-i2m1 10216 ax-1ne0 10217 ax-1rid 10218 ax-rnegex 10219 ax-rrecex 10220 ax-cnre 10221 ax-pre-lttri 10222 ax-pre-lttrn 10223 ax-pre-ltadd 10224 ax-pre-mulgt0 10225 ax-pre-sup 10226 |
This theorem depends on definitions: df-bi 197 df-or 384 df-an 385 df-3or 1073 df-3an 1074 df-tru 1635 df-fal 1638 df-ex 1854 df-nf 1859 df-sb 2047 df-eu 2611 df-mo 2612 df-clab 2747 df-cleq 2753 df-clel 2756 df-nfc 2891 df-ne 2933 df-nel 3036 df-ral 3055 df-rex 3056 df-reu 3057 df-rmo 3058 df-rab 3059 df-v 3342 df-sbc 3577 df-csb 3675 df-dif 3718 df-un 3720 df-in 3722 df-ss 3729 df-pss 3731 df-nul 4059 df-if 4231 df-pw 4304 df-sn 4322 df-pr 4324 df-tp 4326 df-op 4328 df-uni 4589 df-int 4628 df-iun 4674 df-br 4805 df-opab 4865 df-mpt 4882 df-tr 4905 df-id 5174 df-eprel 5179 df-po 5187 df-so 5188 df-fr 5225 df-se 5226 df-we 5227 df-xp 5272 df-rel 5273 df-cnv 5274 df-co 5275 df-dm 5276 df-rn 5277 df-res 5278 df-ima 5279 df-pred 5841 df-ord 5887 df-on 5888 df-lim 5889 df-suc 5890 df-iota 6012 df-fun 6051 df-fn 6052 df-f 6053 df-f1 6054 df-fo 6055 df-f1o 6056 df-fv 6057 df-isom 6058 df-riota 6775 df-ov 6817 df-oprab 6818 df-mpt2 6819 df-om 7232 df-1st 7334 df-2nd 7335 df-wrecs 7577 df-recs 7638 df-rdg 7676 df-1o 7730 df-oadd 7734 df-er 7913 df-ec 7915 df-map 8027 df-en 8124 df-dom 8125 df-sdom 8126 df-fin 8127 df-sup 8515 df-oi 8582 df-card 8975 df-pnf 10288 df-mnf 10289 df-xr 10290 df-ltxr 10291 df-le 10292 df-sub 10480 df-neg 10481 df-div 10897 df-nn 11233 df-2 11291 df-3 11292 df-n0 11505 df-z 11590 df-uz 11900 df-rp 12046 df-ico 12394 df-icc 12395 df-fz 12540 df-fzo 12680 df-seq 13016 df-exp 13075 df-hash 13332 df-cj 14058 df-re 14059 df-im 14060 df-sqrt 14194 df-abs 14195 df-clim 14438 df-sum 14636 df-ee 25991 df-btwn 25992 df-cgr 25993 df-colinear 32473 df-line2 32571 df-lines2 32573 |
This theorem is referenced by: linethrueu 32590 |
Copyright terms: Public domain | W3C validator |