Theorem linepmap 36915

Description: A line described with a projective map. (Contributed by NM, 3-Feb-2012.)

Hypotheses

Ref	Expression
isline2.j	⊢ ∨ = (join‘𝐾)
isline2.a	⊢ 𝐴 = (Atoms‘𝐾)
isline2.n	⊢ 𝑁 = (Lines‘𝐾)
isline2.m	⊢ 𝑀 = (pmap‘𝐾)

Assertion

Ref	Expression
linepmap	⊢ (((𝐾 ∈ Lat ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴) ∧ 𝑃 ≠ 𝑄) → (𝑀‘(𝑃 ∨ 𝑄)) ∈ 𝑁)

Proof of Theorem linepmap

Dummy variable 𝑟 is distinct from all other variables.

Step	Hyp	Ref	Expression
1		simpl1 1187	. . 3 ⊢ (((𝐾 ∈ Lat ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴) ∧ 𝑃 ≠ 𝑄) → 𝐾 ∈ Lat)
2		simpl2 1188	. . . . 5 ⊢ (((𝐾 ∈ Lat ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴) ∧ 𝑃 ≠ 𝑄) → 𝑃 ∈ 𝐴)
3		eqid 2824	. . . . . 6 ⊢ (Base‘𝐾) = (Base‘𝐾)
4		isline2.a	. . . . . 6 ⊢ 𝐴 = (Atoms‘𝐾)
5	3, 4	atbase 36429	. . . . 5 ⊢ (𝑃 ∈ 𝐴 → 𝑃 ∈ (Base‘𝐾))
6	2, 5	syl 17	. . . 4 ⊢ (((𝐾 ∈ Lat ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴) ∧ 𝑃 ≠ 𝑄) → 𝑃 ∈ (Base‘𝐾))
7		simpl3 1189	. . . . 5 ⊢ (((𝐾 ∈ Lat ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴) ∧ 𝑃 ≠ 𝑄) → 𝑄 ∈ 𝐴)
8	3, 4	atbase 36429	. . . . 5 ⊢ (𝑄 ∈ 𝐴 → 𝑄 ∈ (Base‘𝐾))
9	7, 8	syl 17	. . . 4 ⊢ (((𝐾 ∈ Lat ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴) ∧ 𝑃 ≠ 𝑄) → 𝑄 ∈ (Base‘𝐾))
10		isline2.j	. . . . 5 ⊢ ∨ = (join‘𝐾)
11	3, 10	latjcl 17664	. . . 4 ⊢ ((𝐾 ∈ Lat ∧ 𝑃 ∈ (Base‘𝐾) ∧ 𝑄 ∈ (Base‘𝐾)) → (𝑃 ∨ 𝑄) ∈ (Base‘𝐾))
12	1, 6, 9, 11	syl3anc 1367	. . 3 ⊢ (((𝐾 ∈ Lat ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴) ∧ 𝑃 ≠ 𝑄) → (𝑃 ∨ 𝑄) ∈ (Base‘𝐾))
13		eqid 2824	. . . 4 ⊢ (le‘𝐾) = (le‘𝐾)
14		isline2.m	. . . 4 ⊢ 𝑀 = (pmap‘𝐾)
15	3, 13, 4, 14	pmapval 36897	. . 3 ⊢ ((𝐾 ∈ Lat ∧ (𝑃 ∨ 𝑄) ∈ (Base‘𝐾)) → (𝑀‘(𝑃 ∨ 𝑄)) = {𝑟 ∈ 𝐴 ∣ 𝑟(le‘𝐾)(𝑃 ∨ 𝑄)})
16	1, 12, 15	syl2anc 586	. 2 ⊢ (((𝐾 ∈ Lat ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴) ∧ 𝑃 ≠ 𝑄) → (𝑀‘(𝑃 ∨ 𝑄)) = {𝑟 ∈ 𝐴 ∣ 𝑟(le‘𝐾)(𝑃 ∨ 𝑄)})
17		eqid 2824	. . 3 ⊢ {𝑟 ∈ 𝐴 ∣ 𝑟(le‘𝐾)(𝑃 ∨ 𝑄)} = {𝑟 ∈ 𝐴 ∣ 𝑟(le‘𝐾)(𝑃 ∨ 𝑄)}
18		isline2.n	. . . 4 ⊢ 𝑁 = (Lines‘𝐾)
19	13, 10, 4, 18	islinei 36880	. . 3 ⊢ (((𝐾 ∈ Lat ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴) ∧ (𝑃 ≠ 𝑄 ∧ {𝑟 ∈ 𝐴 ∣ 𝑟(le‘𝐾)(𝑃 ∨ 𝑄)} = {𝑟 ∈ 𝐴 ∣ 𝑟(le‘𝐾)(𝑃 ∨ 𝑄)})) → {𝑟 ∈ 𝐴 ∣ 𝑟(le‘𝐾)(𝑃 ∨ 𝑄)} ∈ 𝑁)
20	17, 19	mpanr2 702	. 2 ⊢ (((𝐾 ∈ Lat ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴) ∧ 𝑃 ≠ 𝑄) → {𝑟 ∈ 𝐴 ∣ 𝑟(le‘𝐾)(𝑃 ∨ 𝑄)} ∈ 𝑁)
21	16, 20	eqeltrd 2916	1 ⊢ (((𝐾 ∈ Lat ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴) ∧ 𝑃 ≠ 𝑄) → (𝑀‘(𝑃 ∨ 𝑄)) ∈ 𝑁)

Syntax hints:   → wi 4   ∧ wa 398   ∧ w3a 1083   = wceq 1536   ∈ wcel 2113   ≠ wne 3019  {crab 3145   class class class wbr 5069  ‘cfv 6358  (class class class)co 7159  Basecbs 16486  lecple 16575  joincjn 17557  Latclat 17658  Atomscatm 36403  Linesclines 36634  pmapcpmap 36637

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1795  ax-4 1809  ax-5 1910  ax-6 1969  ax-7 2014  ax-8 2115  ax-9 2123  ax-10 2144  ax-11 2160  ax-12 2176  ax-ext 2796  ax-rep 5193  ax-sep 5206  ax-nul 5213  ax-pow 5269  ax-pr 5333  ax-un 7464

This theorem depends on definitions:  df-bi 209  df-an 399  df-or 844  df-3an 1085  df-tru 1539  df-ex 1780  df-nf 1784  df-sb 2069  df-mo 2621  df-eu 2653  df-clab 2803  df-cleq 2817  df-clel 2896  df-nfc 2966  df-ne 3020  df-ral 3146  df-rex 3147  df-reu 3148  df-rab 3150  df-v 3499  df-sbc 3776  df-csb 3887  df-dif 3942  df-un 3944  df-in 3946  df-ss 3955  df-nul 4295  df-if 4471  df-pw 4544  df-sn 4571  df-pr 4573  df-op 4577  df-uni 4842  df-iun 4924  df-br 5070  df-opab 5132  df-mpt 5150  df-id 5463  df-xp 5564  df-rel 5565  df-cnv 5566  df-co 5567  df-dm 5568  df-rn 5569  df-res 5570  df-ima 5571  df-iota 6317  df-fun 6360  df-fn 6361  df-f 6362  df-f1 6363  df-fo 6364  df-f1o 6365  df-fv 6366  df-riota 7117  df-ov 7162  df-oprab 7163  df-lub 17587  df-glb 17588  df-join 17589  df-meet 17590  df-lat 17659  df-ats 36407  df-lines 36641  df-pmap 36644

This theorem is referenced by:  cdleme3h  37375  cdleme7ga  37388