Theorem intnatN 40071

Description: If the intersection with a non-majorizing element is an atom, the intersecting element is not an atom. (Contributed by NM, 26-Jun-2012.) (New usage is discouraged.)

Hypotheses

Ref	Expression
intnat.b	⊢ 𝐵 = (Base‘𝐾)
intnat.l	⊢ ≤ = (le‘𝐾)
intnat.m	⊢ ∧ = (meet‘𝐾)
intnat.a	⊢ 𝐴 = (Atoms‘𝐾)

Assertion

Ref	Expression
intnatN	⊢ (((𝐾 ∈ HL ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) ∧ (¬ 𝑌 ≤ 𝑋 ∧ (𝑋 ∧ 𝑌) ∈ 𝐴)) → ¬ 𝑌 ∈ 𝐴)

Proof of Theorem intnatN

Step	Hyp	Ref	Expression
1		hlatl 40024	. . . . . . 7 ⊢ (𝐾 ∈ HL → 𝐾 ∈ AtLat)
2	1	3ad2ant1 1149	. . . . . 6 ⊢ ((𝐾 ∈ HL ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) → 𝐾 ∈ AtLat)
3	2	ad2antrr 738	. . . . 5 ⊢ ((((𝐾 ∈ HL ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) ∧ ¬ 𝑌 ≤ 𝑋) ∧ (𝑋 ∧ 𝑌) ∈ 𝐴) → 𝐾 ∈ AtLat)
4		eqid 2769	. . . . . 6 ⊢ (0.‘𝐾) = (0.‘𝐾)
5		intnat.a	. . . . . 6 ⊢ 𝐴 = (Atoms‘𝐾)
6	4, 5	atn0 39972	. . . . 5 ⊢ ((𝐾 ∈ AtLat ∧ (𝑋 ∧ 𝑌) ∈ 𝐴) → (𝑋 ∧ 𝑌) ≠ (0.‘𝐾))
7	3, 6	sylancom 599	. . . 4 ⊢ ((((𝐾 ∈ HL ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) ∧ ¬ 𝑌 ≤ 𝑋) ∧ (𝑋 ∧ 𝑌) ∈ 𝐴) → (𝑋 ∧ 𝑌) ≠ (0.‘𝐾))
8	7	ex 417	. . 3 ⊢ (((𝐾 ∈ HL ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) ∧ ¬ 𝑌 ≤ 𝑋) → ((𝑋 ∧ 𝑌) ∈ 𝐴 → (𝑋 ∧ 𝑌) ≠ (0.‘𝐾)))
9		simpll1 1229	. . . . . . . 8 ⊢ ((((𝐾 ∈ HL ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) ∧ ¬ 𝑌 ≤ 𝑋) ∧ 𝑌 ∈ 𝐴) → 𝐾 ∈ HL)
10	9	hllatd 40028	. . . . . . 7 ⊢ ((((𝐾 ∈ HL ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) ∧ ¬ 𝑌 ≤ 𝑋) ∧ 𝑌 ∈ 𝐴) → 𝐾 ∈ Lat)
11		simpll2 1230	. . . . . . 7 ⊢ ((((𝐾 ∈ HL ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) ∧ ¬ 𝑌 ≤ 𝑋) ∧ 𝑌 ∈ 𝐴) → 𝑋 ∈ 𝐵)
12		simpll3 1231	. . . . . . 7 ⊢ ((((𝐾 ∈ HL ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) ∧ ¬ 𝑌 ≤ 𝑋) ∧ 𝑌 ∈ 𝐴) → 𝑌 ∈ 𝐵)
13		intnat.b	. . . . . . . 8 ⊢ 𝐵 = (Base‘𝐾)
14		intnat.m	. . . . . . . 8 ⊢ ∧ = (meet‘𝐾)
15	13, 14	latmcom 18519	. . . . . . 7 ⊢ ((𝐾 ∈ Lat ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) → (𝑋 ∧ 𝑌) = (𝑌 ∧ 𝑋))
16	10, 11, 12, 15	syl3anc 1396	. . . . . 6 ⊢ ((((𝐾 ∈ HL ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) ∧ ¬ 𝑌 ≤ 𝑋) ∧ 𝑌 ∈ 𝐴) → (𝑋 ∧ 𝑌) = (𝑌 ∧ 𝑋))
17		simplr 780	. . . . . . 7 ⊢ ((((𝐾 ∈ HL ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) ∧ ¬ 𝑌 ≤ 𝑋) ∧ 𝑌 ∈ 𝐴) → ¬ 𝑌 ≤ 𝑋)
18	9, 1	syl 18	. . . . . . . 8 ⊢ ((((𝐾 ∈ HL ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) ∧ ¬ 𝑌 ≤ 𝑋) ∧ 𝑌 ∈ 𝐴) → 𝐾 ∈ AtLat)
19		simpr 489	. . . . . . . 8 ⊢ ((((𝐾 ∈ HL ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) ∧ ¬ 𝑌 ≤ 𝑋) ∧ 𝑌 ∈ 𝐴) → 𝑌 ∈ 𝐴)
20		intnat.l	. . . . . . . . 9 ⊢ ≤ = (le‘𝐾)
21	13, 20, 14, 4, 5	atnle 39981	. . . . . . . 8 ⊢ ((𝐾 ∈ AtLat ∧ 𝑌 ∈ 𝐴 ∧ 𝑋 ∈ 𝐵) → (¬ 𝑌 ≤ 𝑋 ↔ (𝑌 ∧ 𝑋) = (0.‘𝐾)))
22	18, 19, 11, 21	syl3anc 1396	. . . . . . 7 ⊢ ((((𝐾 ∈ HL ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) ∧ ¬ 𝑌 ≤ 𝑋) ∧ 𝑌 ∈ 𝐴) → (¬ 𝑌 ≤ 𝑋 ↔ (𝑌 ∧ 𝑋) = (0.‘𝐾)))
23	17, 22	mpbid 235	. . . . . 6 ⊢ ((((𝐾 ∈ HL ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) ∧ ¬ 𝑌 ≤ 𝑋) ∧ 𝑌 ∈ 𝐴) → (𝑌 ∧ 𝑋) = (0.‘𝐾))
24	16, 23	eqtrd 2804	. . . . 5 ⊢ ((((𝐾 ∈ HL ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) ∧ ¬ 𝑌 ≤ 𝑋) ∧ 𝑌 ∈ 𝐴) → (𝑋 ∧ 𝑌) = (0.‘𝐾))
25	24	ex 417	. . . 4 ⊢ (((𝐾 ∈ HL ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) ∧ ¬ 𝑌 ≤ 𝑋) → (𝑌 ∈ 𝐴 → (𝑋 ∧ 𝑌) = (0.‘𝐾)))
26	25	necon3ad 2977	. . 3 ⊢ (((𝐾 ∈ HL ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) ∧ ¬ 𝑌 ≤ 𝑋) → ((𝑋 ∧ 𝑌) ≠ (0.‘𝐾) → ¬ 𝑌 ∈ 𝐴))
27	8, 26	syld 48	. 2 ⊢ (((𝐾 ∈ HL ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) ∧ ¬ 𝑌 ≤ 𝑋) → ((𝑋 ∧ 𝑌) ∈ 𝐴 → ¬ 𝑌 ∈ 𝐴))
28	27	impr 459	1 ⊢ (((𝐾 ∈ HL ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) ∧ (¬ 𝑌 ≤ 𝑋 ∧ (𝑋 ∧ 𝑌) ∈ 𝐴)) → ¬ 𝑌 ∈ 𝐴)

Syntax hints:  ¬ wn 3   → wi 4   ↔ wb 209   ∧ wa 400   ∧ w3a 1101   = wceq 1567   ∈ wcel 2149   ≠ wne 2964   class class class wbr 5113  ‘cfv 6537  (class class class)co 7411  Basecbs 17269  lecple 17317  meetcmee 18368  0.cp0 18477  Latclat 18487  Atomscatm 39927  AtLatcal 39928  HLchlt 40014

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1822  ax-4 1836  ax-5 1937  ax-6 1994  ax-7 2035  ax-8 2151  ax-9 2159  ax-10 2182  ax-11 2198  ax-12 2219  ax-ext 2741  ax-rep 5242  ax-sep 5261  ax-nul 5271  ax-pow 5337  ax-pr 5405  ax-un 7733

This theorem depends on definitions:  df-bi 210  df-an 401  df-or 861  df-3an 1103  df-tru 1570  df-fal 1580  df-ex 1807  df-nf 1811  df-sb 2098  df-mo 2573  df-eu 2603  df-clab 2748  df-cleq 2761  df-clel 2844  df-nfc 2918  df-ne 2965  df-ral 3086  df-rex 3096  df-rmo 3376  df-reu 3377  df-rab 3424  df-v 3465  df-sbc 3754  df-csb 3862  df-dif 3916  df-un 3918  df-in 3920  df-ss 3930  df-nul 4295  df-if 4493  df-pw 4569  df-sn 4595  df-pr 4597  df-op 4601  df-uni 4877  df-iun 4962  df-br 5114  df-opab 5178  df-mpt 5197  df-id 5557  df-xp 5668  df-rel 5669  df-cnv 5670  df-co 5671  df-dm 5672  df-rn 5673  df-res 5674  df-ima 5675  df-iota 6493  df-fun 6539  df-fn 6540  df-f 6541  df-f1 6542  df-fo 6543  df-f1o 6544  df-fv 6545  df-riota 7368  df-ov 7414  df-oprab 7415  df-proset 18350  df-poset 18369  df-plt 18384  df-lub 18400  df-glb 18401  df-join 18402  df-meet 18403  df-p0 18479  df-lat 18488  df-covers 39930  df-ats 39931  df-atl 39962  df-cvlat 39986  df-hlat 40015

This theorem is referenced by: (None)