Theorem atnle 34604

Description: Two ways of expressing "an atom is not less than or equal to a lattice element." (atnssm0 29235 analog.) (Contributed by NM, 5-Nov-2012.)

Hypotheses

Ref	Expression
atnle.b	|- B = ( Base ` K )
atnle.l	|- .<_ = ( le ` K )
atnle.m	|- ./\ = ( meet ` K )
atnle.z	|- .0. = ( 0. ` K )
atnle.a	|- A = ( Atoms ` K )

Assertion

Ref	Expression
atnle	|- ( ( K e. AtLat /\ P e. A /\ X e. B ) -> ( -. P .<_ X <-> ( P ./\ X ) = .0. ) )

Proof of Theorem atnle

Dummy variable y is distinct from all other variables.

Step	Hyp	Ref	Expression
1		simpl1 1064	. . . . . 6 |- ( ( ( K e. AtLat /\ P e. A /\ X e. B ) /\ ( P ./\ X ) =/= .0. ) -> K e. AtLat )
2		atllat 34587	. . . . . . . . 9 |- ( K e. AtLat -> K e. Lat )
3	2	3ad2ant1 1082	. . . . . . . 8 |- ( ( K e. AtLat /\ P e. A /\ X e. B ) -> K e. Lat )
4		atnle.b	. . . . . . . . . 10 |- B = ( Base ` K )
5		atnle.a	. . . . . . . . . 10 |- A = ( Atoms ` K )
6	4, 5	atbase 34576	. . . . . . . . 9 |- ( P e. A -> P e. B )
7	6	3ad2ant2 1083	. . . . . . . 8 |- ( ( K e. AtLat /\ P e. A /\ X e. B ) -> P e. B )
8		simp3 1063	. . . . . . . 8 |- ( ( K e. AtLat /\ P e. A /\ X e. B ) -> X e. B )
9		atnle.m	. . . . . . . . 9 |- ./\ = ( meet ` K )
10	4, 9	latmcl 17052	. . . . . . . 8 |- ( ( K e. Lat /\ P e. B /\ X e. B ) -> ( P ./\ X ) e. B )
11	3, 7, 8, 10	syl3anc 1326	. . . . . . 7 |- ( ( K e. AtLat /\ P e. A /\ X e. B ) -> ( P ./\ X ) e. B )
12	11	adantr 481	. . . . . 6 |- ( ( ( K e. AtLat /\ P e. A /\ X e. B ) /\ ( P ./\ X ) =/= .0. ) -> ( P ./\ X ) e. B )
13		simpr 477	. . . . . 6 |- ( ( ( K e. AtLat /\ P e. A /\ X e. B ) /\ ( P ./\ X ) =/= .0. ) -> ( P ./\ X ) =/= .0. )
14		atnle.l	. . . . . . 7 |- .<_ = ( le ` K )
15		atnle.z	. . . . . . 7 |- .0. = ( 0. ` K )
16	4, 14, 15, 5	atlex 34603	. . . . . 6 |- ( ( K e. AtLat /\ ( P ./\ X ) e. B /\ ( P ./\ X ) =/= .0. ) -> E. y e. A y .<_ ( P ./\ X ) )
17	1, 12, 13, 16	syl3anc 1326	. . . . 5 |- ( ( ( K e. AtLat /\ P e. A /\ X e. B ) /\ ( P ./\ X ) =/= .0. ) -> E. y e. A y .<_ ( P ./\ X ) )
18		simpl1 1064	. . . . . . . . . 10 |- ( ( ( K e. AtLat /\ P e. A /\ X e. B ) /\ y e. A ) -> K e. AtLat )
19	18, 2	syl 17	. . . . . . . . 9 |- ( ( ( K e. AtLat /\ P e. A /\ X e. B ) /\ y e. A ) -> K e. Lat )
20	4, 5	atbase 34576	. . . . . . . . . 10 |- ( y e. A -> y e. B )
21	20	adantl 482	. . . . . . . . 9 |- ( ( ( K e. AtLat /\ P e. A /\ X e. B ) /\ y e. A ) -> y e. B )
22		simpl2 1065	. . . . . . . . . 10 |- ( ( ( K e. AtLat /\ P e. A /\ X e. B ) /\ y e. A ) -> P e. A )
23	22, 6	syl 17	. . . . . . . . 9 |- ( ( ( K e. AtLat /\ P e. A /\ X e. B ) /\ y e. A ) -> P e. B )
24		simpl3 1066	. . . . . . . . 9 |- ( ( ( K e. AtLat /\ P e. A /\ X e. B ) /\ y e. A ) -> X e. B )
25	4, 14, 9	latlem12 17078	. . . . . . . . 9 |- ( ( K e. Lat /\ ( y e. B /\ P e. B /\ X e. B ) ) -> ( ( y .<_ P /\ y .<_ X ) <-> y .<_ ( P ./\ X ) ) )
26	19, 21, 23, 24, 25	syl13anc 1328	. . . . . . . 8 |- ( ( ( K e. AtLat /\ P e. A /\ X e. B ) /\ y e. A ) -> ( ( y .<_ P /\ y .<_ X ) <-> y .<_ ( P ./\ X ) ) )
27		simpr 477	. . . . . . . . . . 11 |- ( ( ( K e. AtLat /\ P e. A /\ X e. B ) /\ y e. A ) -> y e. A )
28	14, 5	atcmp 34598	. . . . . . . . . . 11 |- ( ( K e. AtLat /\ y e. A /\ P e. A ) -> ( y .<_ P <-> y = P ) )
29	18, 27, 22, 28	syl3anc 1326	. . . . . . . . . 10 |- ( ( ( K e. AtLat /\ P e. A /\ X e. B ) /\ y e. A ) -> ( y .<_ P <-> y = P ) )
30		breq1 4656	. . . . . . . . . . 11 |- ( y = P -> ( y .<_ X <-> P .<_ X ) )
31	30	biimpd 219	. . . . . . . . . 10 |- ( y = P -> ( y .<_ X -> P .<_ X ) )
32	29, 31	syl6bi 243	. . . . . . . . 9 |- ( ( ( K e. AtLat /\ P e. A /\ X e. B ) /\ y e. A ) -> ( y .<_ P -> ( y .<_ X -> P .<_ X ) ) )
33	32	impd 447	. . . . . . . 8 |- ( ( ( K e. AtLat /\ P e. A /\ X e. B ) /\ y e. A ) -> ( ( y .<_ P /\ y .<_ X ) -> P .<_ X ) )
34	26, 33	sylbird 250	. . . . . . 7 |- ( ( ( K e. AtLat /\ P e. A /\ X e. B ) /\ y e. A ) -> ( y .<_ ( P ./\ X ) -> P .<_ X ) )
35	34	adantlr 751	. . . . . 6 |- ( ( ( ( K e. AtLat /\ P e. A /\ X e. B ) /\ ( P ./\ X ) =/= .0. ) /\ y e. A ) -> ( y .<_ ( P ./\ X ) -> P .<_ X ) )
36	35	rexlimdva 3031	. . . . 5 |- ( ( ( K e. AtLat /\ P e. A /\ X e. B ) /\ ( P ./\ X ) =/= .0. ) -> ( E. y e. A y .<_ ( P ./\ X ) -> P .<_ X ) )
37	17, 36	mpd 15	. . . 4 |- ( ( ( K e. AtLat /\ P e. A /\ X e. B ) /\ ( P ./\ X ) =/= .0. ) -> P .<_ X )
38	37	ex 450	. . 3 |- ( ( K e. AtLat /\ P e. A /\ X e. B ) -> ( ( P ./\ X ) =/= .0. -> P .<_ X ) )
39	38	necon1bd 2812	. 2 |- ( ( K e. AtLat /\ P e. A /\ X e. B ) -> ( -. P .<_ X -> ( P ./\ X ) = .0. ) )
40	15, 5	atn0 34595	. . . 4 |- ( ( K e. AtLat /\ P e. A ) -> P =/= .0. )
41	40	3adant3 1081	. . 3 |- ( ( K e. AtLat /\ P e. A /\ X e. B ) -> P =/= .0. )
42	4, 14, 9	latleeqm1 17079	. . . . . . . 8 |- ( ( K e. Lat /\ P e. B /\ X e. B ) -> ( P .<_ X <-> ( P ./\ X ) = P ) )
43	3, 7, 8, 42	syl3anc 1326	. . . . . . 7 |- ( ( K e. AtLat /\ P e. A /\ X e. B ) -> ( P .<_ X <-> ( P ./\ X ) = P ) )
44	43	adantr 481	. . . . . 6 |- ( ( ( K e. AtLat /\ P e. A /\ X e. B ) /\ ( P ./\ X ) = .0. ) -> ( P .<_ X <-> ( P ./\ X ) = P ) )
45		eqeq1 2626	. . . . . . . 8 |- ( ( P ./\ X ) = P -> ( ( P ./\ X ) = .0. <-> P = .0. ) )
46	45	biimpcd 239	. . . . . . 7 |- ( ( P ./\ X ) = .0. -> ( ( P ./\ X ) = P -> P = .0. ) )
47	46	adantl 482	. . . . . 6 |- ( ( ( K e. AtLat /\ P e. A /\ X e. B ) /\ ( P ./\ X ) = .0. ) -> ( ( P ./\ X ) = P -> P = .0. ) )
48	44, 47	sylbid 230	. . . . 5 |- ( ( ( K e. AtLat /\ P e. A /\ X e. B ) /\ ( P ./\ X ) = .0. ) -> ( P .<_ X -> P = .0. ) )
49	48	necon3ad 2807	. . . 4 |- ( ( ( K e. AtLat /\ P e. A /\ X e. B ) /\ ( P ./\ X ) = .0. ) -> ( P =/= .0. -> -. P .<_ X ) )
50	49	ex 450	. . 3 |- ( ( K e. AtLat /\ P e. A /\ X e. B ) -> ( ( P ./\ X ) = .0. -> ( P =/= .0. -> -. P .<_ X ) ) )
51	41, 50	mpid 44	. 2 |- ( ( K e. AtLat /\ P e. A /\ X e. B ) -> ( ( P ./\ X ) = .0. -> -. P .<_ X ) )
52	39, 51	impbid 202	1 |- ( ( K e. AtLat /\ P e. A /\ X e. B ) -> ( -. P .<_ X <-> ( P ./\ X ) = .0. ) )

Syntax hints:   -. wn 3   -> wi 4   <-> wb 196   /\ wa 384   /\ w3a 1037   = wceq 1483   e. wcel 1990   =/= wne 2794   E.wrex 2913   class class class wbr 4653   ` cfv 5888  (class class class)co 6650   Basecbs 15857   lecple 15948   meetcmee 16945   0.cp0 17037   Latclat 17045   Atomscatm 34550   AtLatcal 34551

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1722  ax-4 1737  ax-5 1839  ax-6 1888  ax-7 1935  ax-8 1992  ax-9 1999  ax-10 2019  ax-11 2034  ax-12 2047  ax-13 2246  ax-ext 2602  ax-rep 4771  ax-sep 4781  ax-nul 4789  ax-pow 4843  ax-pr 4906  ax-un 6949

This theorem depends on definitions:  df-bi 197  df-or 385  df-an 386  df-3an 1039  df-tru 1486  df-ex 1705  df-nf 1710  df-sb 1881  df-eu 2474  df-mo 2475  df-clab 2609  df-cleq 2615  df-clel 2618  df-nfc 2753  df-ne 2795  df-ral 2917  df-rex 2918  df-reu 2919  df-rab 2921  df-v 3202  df-sbc 3436  df-csb 3534  df-dif 3577  df-un 3579  df-in 3581  df-ss 3588  df-nul 3916  df-if 4087  df-pw 4160  df-sn 4178  df-pr 4180  df-op 4184  df-uni 4437  df-iun 4522  df-br 4654  df-opab 4713  df-mpt 4730  df-id 5024  df-xp 5120  df-rel 5121  df-cnv 5122  df-co 5123  df-dm 5124  df-rn 5125  df-res 5126  df-ima 5127  df-iota 5851  df-fun 5890  df-fn 5891  df-f 5892  df-f1 5893  df-fo 5894  df-f1o 5895  df-fv 5896  df-riota 6611  df-ov 6653  df-oprab 6654  df-preset 16928  df-poset 16946  df-plt 16958  df-lub 16974  df-glb 16975  df-join 16976  df-meet 16977  df-p0 17039  df-lat 17046  df-covers 34553  df-ats 34554  df-atl 34585

This theorem is referenced by:  atnem0  34605  iscvlat2N  34611  cvlexch3  34619  cvlexch4N  34620  cvlcvrp  34627  intnatN  34693  cvrat4  34729  dalem24  34983  cdlema2N  35078  llnexchb2lem  35154  lhpmat  35316  ltrnmwOLD  35438  cdleme15b  35562  cdlemednpq  35586  cdleme20zN  35588  cdleme20yOLD  35590  cdleme22cN  35630  dihmeetlem7N  36599  dihmeetlem17N  36612