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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 1148 | . . . . 5 ⊢ ((𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) → 𝑃 ∈ (𝔼‘𝑁)) | |
| 2 | simp2 1149 | . . . . 5 ⊢ ((𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) → 𝑄 ∈ (𝔼‘𝑁)) | |
| 3 | simp3 1150 | . . . . 5 ⊢ ((𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) → 𝑃 ≠ 𝑄) | |
| 4 | eqidd 2762 | . . . . 5 ⊢ ((𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) → (𝑃Line𝑄) = (𝑃Line𝑄)) | |
| 5 | neeq1 3018 | . . . . . . 7 ⊢ (𝑝 = 𝑃 → (𝑝 ≠ 𝑞 ↔ 𝑃 ≠ 𝑞)) | |
| 6 | oveq1 7399 | . . . . . . . 8 ⊢ (𝑝 = 𝑃 → (𝑝Line𝑞) = (𝑃Line𝑞)) | |
| 7 | 6 | eqeq2d 2772 | . . . . . . 7 ⊢ (𝑝 = 𝑃 → ((𝑃Line𝑄) = (𝑝Line𝑞) ↔ (𝑃Line𝑄) = (𝑃Line𝑞))) |
| 8 | 5, 7 | anbi12d 641 | . . . . . 6 ⊢ (𝑝 = 𝑃 → ((𝑝 ≠ 𝑞 ∧ (𝑃Line𝑄) = (𝑝Line𝑞)) ↔ (𝑃 ≠ 𝑞 ∧ (𝑃Line𝑄) = (𝑃Line𝑞)))) |
| 9 | neeq2 3019 | . . . . . . 7 ⊢ (𝑞 = 𝑄 → (𝑃 ≠ 𝑞 ↔ 𝑃 ≠ 𝑄)) | |
| 10 | oveq2 7400 | . . . . . . . 8 ⊢ (𝑞 = 𝑄 → (𝑃Line𝑞) = (𝑃Line𝑄)) | |
| 11 | 10 | eqeq2d 2772 | . . . . . . 7 ⊢ (𝑞 = 𝑄 → ((𝑃Line𝑄) = (𝑃Line𝑞) ↔ (𝑃Line𝑄) = (𝑃Line𝑄))) |
| 12 | 9, 11 | anbi12d 641 | . . . . . 6 ⊢ (𝑞 = 𝑄 → ((𝑃 ≠ 𝑞 ∧ (𝑃Line𝑄) = (𝑃Line𝑞)) ↔ (𝑃 ≠ 𝑄 ∧ (𝑃Line𝑄) = (𝑃Line𝑄)))) |
| 13 | 8, 12 | rspc2ev 3594 | . . . . 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 1392 | . . . 4 ⊢ ((𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) → ∃𝑝 ∈ (𝔼‘𝑁)∃𝑞 ∈ (𝔼‘𝑁)(𝑝 ≠ 𝑞 ∧ (𝑃Line𝑄) = (𝑝Line𝑞))) |
| 15 | fveq2 6863 | . . . . . 6 ⊢ (𝑛 = 𝑁 → (𝔼‘𝑛) = (𝔼‘𝑁)) | |
| 16 | 15 | rexeqdv 3320 | . . . . . 6 ⊢ (𝑛 = 𝑁 → (∃𝑞 ∈ (𝔼‘𝑛)(𝑝 ≠ 𝑞 ∧ (𝑃Line𝑄) = (𝑝Line𝑞)) ↔ ∃𝑞 ∈ (𝔼‘𝑁)(𝑝 ≠ 𝑞 ∧ (𝑃Line𝑄) = (𝑝Line𝑞)))) |
| 17 | 15, 16 | rexeqbidv 3336 | . . . . 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 3581 | . . . 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 602 | . . 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 36466 | . . 3 ⊢ ((𝑃Line𝑄) ∈ LinesEE ↔ ∃𝑛 ∈ ℕ ∃𝑝 ∈ (𝔼‘𝑛)∃𝑞 ∈ (𝔼‘𝑛)(𝑝 ≠ 𝑞 ∧ (𝑃Line𝑄) = (𝑝Line𝑞))) | |
| 21 | 19, 20 | sylibr 236 | . 2 ⊢ ((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄)) → (𝑃Line𝑄) ∈ LinesEE) |
| 22 | linerflx1 36463 | . 2 ⊢ ((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄)) → 𝑃 ∈ (𝑃Line𝑄)) | |
| 23 | linerflx2 36465 | . 2 ⊢ ((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄)) → 𝑄 ∈ (𝑃Line𝑄)) | |
| 24 | eleq2 2850 | . . . 4 ⊢ (𝑥 = (𝑃Line𝑄) → (𝑃 ∈ 𝑥 ↔ 𝑃 ∈ (𝑃Line𝑄))) | |
| 25 | eleq2 2850 | . . . 4 ⊢ (𝑥 = (𝑃Line𝑄) → (𝑄 ∈ 𝑥 ↔ 𝑄 ∈ (𝑃Line𝑄))) | |
| 26 | 24, 25 | anbi12d 641 | . . 3 ⊢ (𝑥 = (𝑃Line𝑄) → ((𝑃 ∈ 𝑥 ∧ 𝑄 ∈ 𝑥) ↔ (𝑃 ∈ (𝑃Line𝑄) ∧ 𝑄 ∈ (𝑃Line𝑄)))) |
| 27 | 26 | rspcev 3581 | . 2 ⊢ (((𝑃Line𝑄) ∈ LinesEE ∧ (𝑃 ∈ (𝑃Line𝑄) ∧ 𝑄 ∈ (𝑃Line𝑄))) → ∃𝑥 ∈ LinesEE (𝑃 ∈ 𝑥 ∧ 𝑄 ∈ 𝑥)) |
| 28 | 21, 22, 23, 27 | syl12anc 847 | 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 399 ∧ w3a 1097 = wceq 1559 ∈ wcel 2141 ≠ wne 2956 ∃wrex 3085 ‘cfv 6517 (class class class)co 7392 ℕcn 12207 𝔼cee 29034 Linecline2 36448 LinesEEclines2 36450 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1814 ax-4 1828 ax-5 1929 ax-6 1986 ax-7 2027 ax-8 2143 ax-9 2151 ax-10 2174 ax-11 2190 ax-12 2211 ax-ext 2733 ax-rep 5226 ax-sep 5245 ax-nul 5255 ax-pow 5321 ax-pr 5389 ax-un 7714 ax-inf2 9593 ax-cnex 11126 ax-resscn 11127 ax-1cn 11128 ax-icn 11129 ax-addcl 11130 ax-addrcl 11131 ax-mulcl 11132 ax-mulrcl 11133 ax-mulcom 11134 ax-addass 11135 ax-mulass 11136 ax-distr 11137 ax-i2m1 11138 ax-1ne0 11139 ax-1rid 11140 ax-rnegex 11141 ax-rrecex 11142 ax-cnre 11143 ax-pre-lttri 11144 ax-pre-lttrn 11145 ax-pre-ltadd 11146 ax-pre-mulgt0 11147 ax-pre-sup 11148 |
| This theorem depends on definitions: df-bi 209 df-an 400 df-or 859 df-3or 1098 df-3an 1099 df-tru 1562 df-fal 1572 df-ex 1799 df-nf 1803 df-sb 2090 df-mo 2565 df-eu 2595 df-clab 2740 df-cleq 2753 df-clel 2836 df-nfc 2910 df-ne 2957 df-nel 3061 df-ral 3076 df-rex 3086 df-rmo 3366 df-reu 3367 df-rab 3414 df-v 3455 df-sbc 3745 df-csb 3853 df-dif 3907 df-un 3909 df-in 3911 df-ss 3921 df-pss 3924 df-nul 4286 df-if 4480 df-pw 4556 df-sn 4582 df-pr 4584 df-op 4588 df-uni 4865 df-int 4905 df-iun 4950 df-br 5100 df-opab 5162 df-mpt 5181 df-tr 5207 df-id 5540 df-eprel 5545 df-po 5553 df-so 5554 df-fr 5598 df-se 5599 df-we 5600 df-xp 5651 df-rel 5652 df-cnv 5653 df-co 5654 df-dm 5655 df-rn 5656 df-res 5657 df-ima 5658 df-pred 6284 df-ord 6345 df-on 6346 df-lim 6347 df-suc 6348 df-iota 6473 df-fun 6519 df-fn 6520 df-f 6521 df-f1 6522 df-fo 6523 df-f1o 6524 df-fv 6525 df-isom 6526 df-riota 7349 df-ov 7395 df-oprab 7396 df-mpo 7397 df-om 7843 df-1st 7966 df-2nd 7967 df-frecs 8257 df-wrecs 8288 df-recs 8337 df-rdg 8376 df-1o 8432 df-er 8673 df-ec 8675 df-map 8805 df-en 8924 df-dom 8925 df-sdom 8926 df-fin 8927 df-sup 9385 df-oi 9455 df-card 9894 df-pnf 11215 df-mnf 11216 df-xr 11217 df-ltxr 11218 df-le 11219 df-sub 11413 df-neg 11414 df-div 11842 df-nn 12208 df-2 12277 df-3 12278 df-n0 12479 df-z 12566 df-uz 12837 df-rp 12991 df-ico 13352 df-icc 13353 df-fz 13510 df-fzo 13657 df-seq 14012 df-exp 14072 df-hash 14341 df-cj 15109 df-re 15110 df-im 15111 df-sqrt 15245 df-abs 15246 df-clim 15498 df-sum 15697 df-ee 29037 df-btwn 29038 df-cgr 29039 df-colinear 36353 df-line2 36451 df-lines2 36453 |
| This theorem is referenced by: linethrueu 36470 |
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