Theorem paddasslem5 36954

Description: Lemma for paddass 36968. Show 𝑠 ≠ 𝑧 by contradiction. (Contributed by NM, 8-Jan-2012.)

Hypotheses

Ref	Expression
paddasslem.l	⊢ ≤ = (le‘𝐾)
paddasslem.j	⊢ ∨ = (join‘𝐾)
paddasslem.a	⊢ 𝐴 = (Atoms‘𝐾)

Assertion

Ref	Expression
paddasslem5	⊢ (((𝐾 ∈ HL ∧ 𝑟 ∈ 𝐴 ∧ (𝑥 ∈ 𝐴 ∧ 𝑦 ∈ 𝐴 ∧ 𝑧 ∈ 𝐴)) ∧ (¬ 𝑟 ≤ (𝑥 ∨ 𝑦) ∧ 𝑟 ≤ (𝑦 ∨ 𝑧) ∧ 𝑠 ≤ (𝑥 ∨ 𝑦))) → 𝑠 ≠ 𝑧)

Proof of Theorem paddasslem5

Step	Hyp	Ref	Expression
1		breq1 5062	. . . . . . . . 9 ⊢ (𝑠 = 𝑧 → (𝑠 ≤ (𝑥 ∨ 𝑦) ↔ 𝑧 ≤ (𝑥 ∨ 𝑦)))
2	1	biimpac 481	. . . . . . . 8 ⊢ ((𝑠 ≤ (𝑥 ∨ 𝑦) ∧ 𝑠 = 𝑧) → 𝑧 ≤ (𝑥 ∨ 𝑦))
3		eqid 2821	. . . . . . . . . 10 ⊢ (Base‘𝐾) = (Base‘𝐾)
4		paddasslem.l	. . . . . . . . . 10 ⊢ ≤ = (le‘𝐾)
5		simpll1 1208	. . . . . . . . . . 11 ⊢ ((((𝐾 ∈ HL ∧ 𝑟 ∈ 𝐴 ∧ (𝑥 ∈ 𝐴 ∧ 𝑦 ∈ 𝐴 ∧ 𝑧 ∈ 𝐴)) ∧ 𝑟 ≤ (𝑦 ∨ 𝑧)) ∧ 𝑧 ≤ (𝑥 ∨ 𝑦)) → 𝐾 ∈ HL)
6	5	hllatd 36494	. . . . . . . . . 10 ⊢ ((((𝐾 ∈ HL ∧ 𝑟 ∈ 𝐴 ∧ (𝑥 ∈ 𝐴 ∧ 𝑦 ∈ 𝐴 ∧ 𝑧 ∈ 𝐴)) ∧ 𝑟 ≤ (𝑦 ∨ 𝑧)) ∧ 𝑧 ≤ (𝑥 ∨ 𝑦)) → 𝐾 ∈ Lat)
7		simpll2 1209	. . . . . . . . . . 11 ⊢ ((((𝐾 ∈ HL ∧ 𝑟 ∈ 𝐴 ∧ (𝑥 ∈ 𝐴 ∧ 𝑦 ∈ 𝐴 ∧ 𝑧 ∈ 𝐴)) ∧ 𝑟 ≤ (𝑦 ∨ 𝑧)) ∧ 𝑧 ≤ (𝑥 ∨ 𝑦)) → 𝑟 ∈ 𝐴)
8		paddasslem.a	. . . . . . . . . . . 12 ⊢ 𝐴 = (Atoms‘𝐾)
9	3, 8	atbase 36419	. . . . . . . . . . 11 ⊢ (𝑟 ∈ 𝐴 → 𝑟 ∈ (Base‘𝐾))
10	7, 9	syl 17	. . . . . . . . . 10 ⊢ ((((𝐾 ∈ HL ∧ 𝑟 ∈ 𝐴 ∧ (𝑥 ∈ 𝐴 ∧ 𝑦 ∈ 𝐴 ∧ 𝑧 ∈ 𝐴)) ∧ 𝑟 ≤ (𝑦 ∨ 𝑧)) ∧ 𝑧 ≤ (𝑥 ∨ 𝑦)) → 𝑟 ∈ (Base‘𝐾))
11		simp32 1206	. . . . . . . . . . . . 13 ⊢ ((𝐾 ∈ HL ∧ 𝑟 ∈ 𝐴 ∧ (𝑥 ∈ 𝐴 ∧ 𝑦 ∈ 𝐴 ∧ 𝑧 ∈ 𝐴)) → 𝑦 ∈ 𝐴)
12	11	ad2antrr 724	. . . . . . . . . . . 12 ⊢ ((((𝐾 ∈ HL ∧ 𝑟 ∈ 𝐴 ∧ (𝑥 ∈ 𝐴 ∧ 𝑦 ∈ 𝐴 ∧ 𝑧 ∈ 𝐴)) ∧ 𝑟 ≤ (𝑦 ∨ 𝑧)) ∧ 𝑧 ≤ (𝑥 ∨ 𝑦)) → 𝑦 ∈ 𝐴)
13	3, 8	atbase 36419	. . . . . . . . . . . 12 ⊢ (𝑦 ∈ 𝐴 → 𝑦 ∈ (Base‘𝐾))
14	12, 13	syl 17	. . . . . . . . . . 11 ⊢ ((((𝐾 ∈ HL ∧ 𝑟 ∈ 𝐴 ∧ (𝑥 ∈ 𝐴 ∧ 𝑦 ∈ 𝐴 ∧ 𝑧 ∈ 𝐴)) ∧ 𝑟 ≤ (𝑦 ∨ 𝑧)) ∧ 𝑧 ≤ (𝑥 ∨ 𝑦)) → 𝑦 ∈ (Base‘𝐾))
15		simp33 1207	. . . . . . . . . . . . 13 ⊢ ((𝐾 ∈ HL ∧ 𝑟 ∈ 𝐴 ∧ (𝑥 ∈ 𝐴 ∧ 𝑦 ∈ 𝐴 ∧ 𝑧 ∈ 𝐴)) → 𝑧 ∈ 𝐴)
16	15	ad2antrr 724	. . . . . . . . . . . 12 ⊢ ((((𝐾 ∈ HL ∧ 𝑟 ∈ 𝐴 ∧ (𝑥 ∈ 𝐴 ∧ 𝑦 ∈ 𝐴 ∧ 𝑧 ∈ 𝐴)) ∧ 𝑟 ≤ (𝑦 ∨ 𝑧)) ∧ 𝑧 ≤ (𝑥 ∨ 𝑦)) → 𝑧 ∈ 𝐴)
17	3, 8	atbase 36419	. . . . . . . . . . . 12 ⊢ (𝑧 ∈ 𝐴 → 𝑧 ∈ (Base‘𝐾))
18	16, 17	syl 17	. . . . . . . . . . 11 ⊢ ((((𝐾 ∈ HL ∧ 𝑟 ∈ 𝐴 ∧ (𝑥 ∈ 𝐴 ∧ 𝑦 ∈ 𝐴 ∧ 𝑧 ∈ 𝐴)) ∧ 𝑟 ≤ (𝑦 ∨ 𝑧)) ∧ 𝑧 ≤ (𝑥 ∨ 𝑦)) → 𝑧 ∈ (Base‘𝐾))
19		paddasslem.j	. . . . . . . . . . . 12 ⊢ ∨ = (join‘𝐾)
20	3, 19	latjcl 17655	. . . . . . . . . . 11 ⊢ ((𝐾 ∈ Lat ∧ 𝑦 ∈ (Base‘𝐾) ∧ 𝑧 ∈ (Base‘𝐾)) → (𝑦 ∨ 𝑧) ∈ (Base‘𝐾))
21	6, 14, 18, 20	syl3anc 1367	. . . . . . . . . 10 ⊢ ((((𝐾 ∈ HL ∧ 𝑟 ∈ 𝐴 ∧ (𝑥 ∈ 𝐴 ∧ 𝑦 ∈ 𝐴 ∧ 𝑧 ∈ 𝐴)) ∧ 𝑟 ≤ (𝑦 ∨ 𝑧)) ∧ 𝑧 ≤ (𝑥 ∨ 𝑦)) → (𝑦 ∨ 𝑧) ∈ (Base‘𝐾))
22		simp31 1205	. . . . . . . . . . . . 13 ⊢ ((𝐾 ∈ HL ∧ 𝑟 ∈ 𝐴 ∧ (𝑥 ∈ 𝐴 ∧ 𝑦 ∈ 𝐴 ∧ 𝑧 ∈ 𝐴)) → 𝑥 ∈ 𝐴)
23	22	ad2antrr 724	. . . . . . . . . . . 12 ⊢ ((((𝐾 ∈ HL ∧ 𝑟 ∈ 𝐴 ∧ (𝑥 ∈ 𝐴 ∧ 𝑦 ∈ 𝐴 ∧ 𝑧 ∈ 𝐴)) ∧ 𝑟 ≤ (𝑦 ∨ 𝑧)) ∧ 𝑧 ≤ (𝑥 ∨ 𝑦)) → 𝑥 ∈ 𝐴)
24	3, 8	atbase 36419	. . . . . . . . . . . 12 ⊢ (𝑥 ∈ 𝐴 → 𝑥 ∈ (Base‘𝐾))
25	23, 24	syl 17	. . . . . . . . . . 11 ⊢ ((((𝐾 ∈ HL ∧ 𝑟 ∈ 𝐴 ∧ (𝑥 ∈ 𝐴 ∧ 𝑦 ∈ 𝐴 ∧ 𝑧 ∈ 𝐴)) ∧ 𝑟 ≤ (𝑦 ∨ 𝑧)) ∧ 𝑧 ≤ (𝑥 ∨ 𝑦)) → 𝑥 ∈ (Base‘𝐾))
26	3, 19	latjcl 17655	. . . . . . . . . . 11 ⊢ ((𝐾 ∈ Lat ∧ 𝑥 ∈ (Base‘𝐾) ∧ 𝑦 ∈ (Base‘𝐾)) → (𝑥 ∨ 𝑦) ∈ (Base‘𝐾))
27	6, 25, 14, 26	syl3anc 1367	. . . . . . . . . 10 ⊢ ((((𝐾 ∈ HL ∧ 𝑟 ∈ 𝐴 ∧ (𝑥 ∈ 𝐴 ∧ 𝑦 ∈ 𝐴 ∧ 𝑧 ∈ 𝐴)) ∧ 𝑟 ≤ (𝑦 ∨ 𝑧)) ∧ 𝑧 ≤ (𝑥 ∨ 𝑦)) → (𝑥 ∨ 𝑦) ∈ (Base‘𝐾))
28		simplr 767	. . . . . . . . . 10 ⊢ ((((𝐾 ∈ HL ∧ 𝑟 ∈ 𝐴 ∧ (𝑥 ∈ 𝐴 ∧ 𝑦 ∈ 𝐴 ∧ 𝑧 ∈ 𝐴)) ∧ 𝑟 ≤ (𝑦 ∨ 𝑧)) ∧ 𝑧 ≤ (𝑥 ∨ 𝑦)) → 𝑟 ≤ (𝑦 ∨ 𝑧))
29	4, 19, 8	hlatlej2 36506	. . . . . . . . . . . 12 ⊢ ((𝐾 ∈ HL ∧ 𝑥 ∈ 𝐴 ∧ 𝑦 ∈ 𝐴) → 𝑦 ≤ (𝑥 ∨ 𝑦))
30	5, 23, 12, 29	syl3anc 1367	. . . . . . . . . . 11 ⊢ ((((𝐾 ∈ HL ∧ 𝑟 ∈ 𝐴 ∧ (𝑥 ∈ 𝐴 ∧ 𝑦 ∈ 𝐴 ∧ 𝑧 ∈ 𝐴)) ∧ 𝑟 ≤ (𝑦 ∨ 𝑧)) ∧ 𝑧 ≤ (𝑥 ∨ 𝑦)) → 𝑦 ≤ (𝑥 ∨ 𝑦))
31		simpr 487	. . . . . . . . . . 11 ⊢ ((((𝐾 ∈ HL ∧ 𝑟 ∈ 𝐴 ∧ (𝑥 ∈ 𝐴 ∧ 𝑦 ∈ 𝐴 ∧ 𝑧 ∈ 𝐴)) ∧ 𝑟 ≤ (𝑦 ∨ 𝑧)) ∧ 𝑧 ≤ (𝑥 ∨ 𝑦)) → 𝑧 ≤ (𝑥 ∨ 𝑦))
32	3, 4, 19	latjle12 17666	. . . . . . . . . . . . 13 ⊢ ((𝐾 ∈ Lat ∧ (𝑦 ∈ (Base‘𝐾) ∧ 𝑧 ∈ (Base‘𝐾) ∧ (𝑥 ∨ 𝑦) ∈ (Base‘𝐾))) → ((𝑦 ≤ (𝑥 ∨ 𝑦) ∧ 𝑧 ≤ (𝑥 ∨ 𝑦)) ↔ (𝑦 ∨ 𝑧) ≤ (𝑥 ∨ 𝑦)))
33	32	biimpd 231	. . . . . . . . . . . 12 ⊢ ((𝐾 ∈ Lat ∧ (𝑦 ∈ (Base‘𝐾) ∧ 𝑧 ∈ (Base‘𝐾) ∧ (𝑥 ∨ 𝑦) ∈ (Base‘𝐾))) → ((𝑦 ≤ (𝑥 ∨ 𝑦) ∧ 𝑧 ≤ (𝑥 ∨ 𝑦)) → (𝑦 ∨ 𝑧) ≤ (𝑥 ∨ 𝑦)))
34	6, 14, 18, 27, 33	syl13anc 1368	. . . . . . . . . . 11 ⊢ ((((𝐾 ∈ HL ∧ 𝑟 ∈ 𝐴 ∧ (𝑥 ∈ 𝐴 ∧ 𝑦 ∈ 𝐴 ∧ 𝑧 ∈ 𝐴)) ∧ 𝑟 ≤ (𝑦 ∨ 𝑧)) ∧ 𝑧 ≤ (𝑥 ∨ 𝑦)) → ((𝑦 ≤ (𝑥 ∨ 𝑦) ∧ 𝑧 ≤ (𝑥 ∨ 𝑦)) → (𝑦 ∨ 𝑧) ≤ (𝑥 ∨ 𝑦)))
35	30, 31, 34	mp2and 697	. . . . . . . . . 10 ⊢ ((((𝐾 ∈ HL ∧ 𝑟 ∈ 𝐴 ∧ (𝑥 ∈ 𝐴 ∧ 𝑦 ∈ 𝐴 ∧ 𝑧 ∈ 𝐴)) ∧ 𝑟 ≤ (𝑦 ∨ 𝑧)) ∧ 𝑧 ≤ (𝑥 ∨ 𝑦)) → (𝑦 ∨ 𝑧) ≤ (𝑥 ∨ 𝑦))
36	3, 4, 6, 10, 21, 27, 28, 35	lattrd 17662	. . . . . . . . 9 ⊢ ((((𝐾 ∈ HL ∧ 𝑟 ∈ 𝐴 ∧ (𝑥 ∈ 𝐴 ∧ 𝑦 ∈ 𝐴 ∧ 𝑧 ∈ 𝐴)) ∧ 𝑟 ≤ (𝑦 ∨ 𝑧)) ∧ 𝑧 ≤ (𝑥 ∨ 𝑦)) → 𝑟 ≤ (𝑥 ∨ 𝑦))
37	36	ex 415	. . . . . . . 8 ⊢ (((𝐾 ∈ HL ∧ 𝑟 ∈ 𝐴 ∧ (𝑥 ∈ 𝐴 ∧ 𝑦 ∈ 𝐴 ∧ 𝑧 ∈ 𝐴)) ∧ 𝑟 ≤ (𝑦 ∨ 𝑧)) → (𝑧 ≤ (𝑥 ∨ 𝑦) → 𝑟 ≤ (𝑥 ∨ 𝑦)))
38	2, 37	syl5 34	. . . . . . 7 ⊢ (((𝐾 ∈ HL ∧ 𝑟 ∈ 𝐴 ∧ (𝑥 ∈ 𝐴 ∧ 𝑦 ∈ 𝐴 ∧ 𝑧 ∈ 𝐴)) ∧ 𝑟 ≤ (𝑦 ∨ 𝑧)) → ((𝑠 ≤ (𝑥 ∨ 𝑦) ∧ 𝑠 = 𝑧) → 𝑟 ≤ (𝑥 ∨ 𝑦)))
39	38	expdimp 455	. . . . . 6 ⊢ ((((𝐾 ∈ HL ∧ 𝑟 ∈ 𝐴 ∧ (𝑥 ∈ 𝐴 ∧ 𝑦 ∈ 𝐴 ∧ 𝑧 ∈ 𝐴)) ∧ 𝑟 ≤ (𝑦 ∨ 𝑧)) ∧ 𝑠 ≤ (𝑥 ∨ 𝑦)) → (𝑠 = 𝑧 → 𝑟 ≤ (𝑥 ∨ 𝑦)))
40	39	necon3bd 3030	. . . . 5 ⊢ ((((𝐾 ∈ HL ∧ 𝑟 ∈ 𝐴 ∧ (𝑥 ∈ 𝐴 ∧ 𝑦 ∈ 𝐴 ∧ 𝑧 ∈ 𝐴)) ∧ 𝑟 ≤ (𝑦 ∨ 𝑧)) ∧ 𝑠 ≤ (𝑥 ∨ 𝑦)) → (¬ 𝑟 ≤ (𝑥 ∨ 𝑦) → 𝑠 ≠ 𝑧))
41	40	exp31 422	. . . 4 ⊢ ((𝐾 ∈ HL ∧ 𝑟 ∈ 𝐴 ∧ (𝑥 ∈ 𝐴 ∧ 𝑦 ∈ 𝐴 ∧ 𝑧 ∈ 𝐴)) → (𝑟 ≤ (𝑦 ∨ 𝑧) → (𝑠 ≤ (𝑥 ∨ 𝑦) → (¬ 𝑟 ≤ (𝑥 ∨ 𝑦) → 𝑠 ≠ 𝑧))))
42	41	com23 86	. . 3 ⊢ ((𝐾 ∈ HL ∧ 𝑟 ∈ 𝐴 ∧ (𝑥 ∈ 𝐴 ∧ 𝑦 ∈ 𝐴 ∧ 𝑧 ∈ 𝐴)) → (𝑠 ≤ (𝑥 ∨ 𝑦) → (𝑟 ≤ (𝑦 ∨ 𝑧) → (¬ 𝑟 ≤ (𝑥 ∨ 𝑦) → 𝑠 ≠ 𝑧))))
43	42	com24 95	. 2 ⊢ ((𝐾 ∈ HL ∧ 𝑟 ∈ 𝐴 ∧ (𝑥 ∈ 𝐴 ∧ 𝑦 ∈ 𝐴 ∧ 𝑧 ∈ 𝐴)) → (¬ 𝑟 ≤ (𝑥 ∨ 𝑦) → (𝑟 ≤ (𝑦 ∨ 𝑧) → (𝑠 ≤ (𝑥 ∨ 𝑦) → 𝑠 ≠ 𝑧))))
44	43	3imp2 1345	1 ⊢ (((𝐾 ∈ HL ∧ 𝑟 ∈ 𝐴 ∧ (𝑥 ∈ 𝐴 ∧ 𝑦 ∈ 𝐴 ∧ 𝑧 ∈ 𝐴)) ∧ (¬ 𝑟 ≤ (𝑥 ∨ 𝑦) ∧ 𝑟 ≤ (𝑦 ∨ 𝑧) ∧ 𝑠 ≤ (𝑥 ∨ 𝑦))) → 𝑠 ≠ 𝑧)

Syntax hints:  ¬ wn 3   → wi 4   ∧ wa 398   ∧ w3a 1083   = wceq 1533   ∈ wcel 2110   ≠ wne 3016   class class class wbr 5059  ‘cfv 6350  (class class class)co 7150  Basecbs 16477  lecple 16566  joincjn 17548  Latclat 17649  Atomscatm 36393  HLchlt 36480

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1792  ax-4 1806  ax-5 1907  ax-6 1966  ax-7 2011  ax-8 2112  ax-9 2120  ax-10 2141  ax-11 2156  ax-12 2172  ax-ext 2793  ax-rep 5183  ax-sep 5196  ax-nul 5203  ax-pow 5259  ax-pr 5322  ax-un 7455

This theorem depends on definitions:  df-bi 209  df-an 399  df-or 844  df-3an 1085  df-tru 1536  df-ex 1777  df-nf 1781  df-sb 2066  df-mo 2618  df-eu 2650  df-clab 2800  df-cleq 2814  df-clel 2893  df-nfc 2963  df-ne 3017  df-ral 3143  df-rex 3144  df-reu 3145  df-rab 3147  df-v 3497  df-sbc 3773  df-csb 3884  df-dif 3939  df-un 3941  df-in 3943  df-ss 3952  df-nul 4292  df-if 4468  df-pw 4541  df-sn 4562  df-pr 4564  df-op 4568  df-uni 4833  df-iun 4914  df-br 5060  df-opab 5122  df-mpt 5140  df-id 5455  df-xp 5556  df-rel 5557  df-cnv 5558  df-co 5559  df-dm 5560  df-rn 5561  df-res 5562  df-ima 5563  df-iota 6309  df-fun 6352  df-fn 6353  df-f 6354  df-f1 6355  df-fo 6356  df-f1o 6357  df-fv 6358  df-riota 7108  df-ov 7153  df-oprab 7154  df-poset 17550  df-lub 17578  df-glb 17579  df-join 17580  df-meet 17581  df-lat 17650  df-ats 36397  df-atl 36428  df-cvlat 36452  df-hlat 36481

This theorem is referenced by:  paddasslem7  36956