| Step | 
						Hyp | 
						Ref | 
						Expression | 
					
						
							| 1 | 
							
								
							 | 
							cdleme4.l | 
							 |-  .<_ = ( le ` K )  | 
						
						
							| 2 | 
							
								
							 | 
							cdleme4.j | 
							 |-  .\/ = ( join ` K )  | 
						
						
							| 3 | 
							
								
							 | 
							cdleme4.m | 
							 |-  ./\ = ( meet ` K )  | 
						
						
							| 4 | 
							
								
							 | 
							cdleme4.a | 
							 |-  A = ( Atoms ` K )  | 
						
						
							| 5 | 
							
								
							 | 
							cdleme4.h | 
							 |-  H = ( LHyp ` K )  | 
						
						
							| 6 | 
							
								
							 | 
							cdleme4.u | 
							 |-  U = ( ( P .\/ Q ) ./\ W )  | 
						
						
							| 7 | 
							
								
							 | 
							cdleme4.f | 
							 |-  F = ( ( S .\/ U ) ./\ ( Q .\/ ( ( P .\/ S ) ./\ W ) ) )  | 
						
						
							| 8 | 
							
								
							 | 
							cdleme4.g | 
							 |-  G = ( ( P .\/ Q ) ./\ ( F .\/ ( ( R .\/ S ) ./\ W ) ) )  | 
						
						
							| 9 | 
							
								
							 | 
							simp11l | 
							 |-  ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( ( R e. A /\ -. R .<_ W ) /\ ( S e. A /\ -. S .<_ W ) ) /\ ( P =/= Q /\ R .<_ ( P .\/ Q ) /\ -. S .<_ ( P .\/ Q ) ) ) -> K e. HL )  | 
						
						
							| 10 | 
							
								
							 | 
							simp12l | 
							 |-  ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( ( R e. A /\ -. R .<_ W ) /\ ( S e. A /\ -. S .<_ W ) ) /\ ( P =/= Q /\ R .<_ ( P .\/ Q ) /\ -. S .<_ ( P .\/ Q ) ) ) -> P e. A )  | 
						
						
							| 11 | 
							
								
							 | 
							simp13l | 
							 |-  ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( ( R e. A /\ -. R .<_ W ) /\ ( S e. A /\ -. S .<_ W ) ) /\ ( P =/= Q /\ R .<_ ( P .\/ Q ) /\ -. S .<_ ( P .\/ Q ) ) ) -> Q e. A )  | 
						
						
							| 12 | 
							
								
							 | 
							eqid | 
							 |-  ( Base ` K ) = ( Base ` K )  | 
						
						
							| 13 | 
							
								12 2 4
							 | 
							hlatjcl | 
							 |-  ( ( K e. HL /\ P e. A /\ Q e. A ) -> ( P .\/ Q ) e. ( Base ` K ) )  | 
						
						
							| 14 | 
							
								9 10 11 13
							 | 
							syl3anc | 
							 |-  ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( ( R e. A /\ -. R .<_ W ) /\ ( S e. A /\ -. S .<_ W ) ) /\ ( P =/= Q /\ R .<_ ( P .\/ Q ) /\ -. S .<_ ( P .\/ Q ) ) ) -> ( P .\/ Q ) e. ( Base ` K ) )  | 
						
						
							| 15 | 
							
								
							 | 
							simp11 | 
							 |-  ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( ( R e. A /\ -. R .<_ W ) /\ ( S e. A /\ -. S .<_ W ) ) /\ ( P =/= Q /\ R .<_ ( P .\/ Q ) /\ -. S .<_ ( P .\/ Q ) ) ) -> ( K e. HL /\ W e. H ) )  | 
						
						
							| 16 | 
							
								
							 | 
							simp12 | 
							 |-  ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( ( R e. A /\ -. R .<_ W ) /\ ( S e. A /\ -. S .<_ W ) ) /\ ( P =/= Q /\ R .<_ ( P .\/ Q ) /\ -. S .<_ ( P .\/ Q ) ) ) -> ( P e. A /\ -. P .<_ W ) )  | 
						
						
							| 17 | 
							
								
							 | 
							simp13 | 
							 |-  ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( ( R e. A /\ -. R .<_ W ) /\ ( S e. A /\ -. S .<_ W ) ) /\ ( P =/= Q /\ R .<_ ( P .\/ Q ) /\ -. S .<_ ( P .\/ Q ) ) ) -> ( Q e. A /\ -. Q .<_ W ) )  | 
						
						
							| 18 | 
							
								
							 | 
							simp2r | 
							 |-  ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( ( R e. A /\ -. R .<_ W ) /\ ( S e. A /\ -. S .<_ W ) ) /\ ( P =/= Q /\ R .<_ ( P .\/ Q ) /\ -. S .<_ ( P .\/ Q ) ) ) -> ( S e. A /\ -. S .<_ W ) )  | 
						
						
							| 19 | 
							
								
							 | 
							simp31 | 
							 |-  ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( ( R e. A /\ -. R .<_ W ) /\ ( S e. A /\ -. S .<_ W ) ) /\ ( P =/= Q /\ R .<_ ( P .\/ Q ) /\ -. S .<_ ( P .\/ Q ) ) ) -> P =/= Q )  | 
						
						
							| 20 | 
							
								
							 | 
							simp33 | 
							 |-  ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( ( R e. A /\ -. R .<_ W ) /\ ( S e. A /\ -. S .<_ W ) ) /\ ( P =/= Q /\ R .<_ ( P .\/ Q ) /\ -. S .<_ ( P .\/ Q ) ) ) -> -. S .<_ ( P .\/ Q ) )  | 
						
						
							| 21 | 
							
								1 2 3 4 5 6 7
							 | 
							cdleme3fa | 
							 |-  ( ( ( K e. HL /\ W e. H ) /\ ( ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) /\ ( S e. A /\ -. S .<_ W ) ) /\ ( P =/= Q /\ -. S .<_ ( P .\/ Q ) ) ) -> F e. A )  | 
						
						
							| 22 | 
							
								15 16 17 18 19 20 21
							 | 
							syl132anc | 
							 |-  ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( ( R e. A /\ -. R .<_ W ) /\ ( S e. A /\ -. S .<_ W ) ) /\ ( P =/= Q /\ R .<_ ( P .\/ Q ) /\ -. S .<_ ( P .\/ Q ) ) ) -> F e. A )  | 
						
						
							| 23 | 
							
								
							 | 
							simp2l | 
							 |-  ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( ( R e. A /\ -. R .<_ W ) /\ ( S e. A /\ -. S .<_ W ) ) /\ ( P =/= Q /\ R .<_ ( P .\/ Q ) /\ -. S .<_ ( P .\/ Q ) ) ) -> ( R e. A /\ -. R .<_ W ) )  | 
						
						
							| 24 | 
							
								
							 | 
							simp2rl | 
							 |-  ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( ( R e. A /\ -. R .<_ W ) /\ ( S e. A /\ -. S .<_ W ) ) /\ ( P =/= Q /\ R .<_ ( P .\/ Q ) /\ -. S .<_ ( P .\/ Q ) ) ) -> S e. A )  | 
						
						
							| 25 | 
							
								
							 | 
							simp32 | 
							 |-  ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( ( R e. A /\ -. R .<_ W ) /\ ( S e. A /\ -. S .<_ W ) ) /\ ( P =/= Q /\ R .<_ ( P .\/ Q ) /\ -. S .<_ ( P .\/ Q ) ) ) -> R .<_ ( P .\/ Q ) )  | 
						
						
							| 26 | 
							
								
							 | 
							eqid | 
							 |-  ( ( R .\/ S ) ./\ W ) = ( ( R .\/ S ) ./\ W )  | 
						
						
							| 27 | 
							
								1 2 3 4 5 6 7 8 26
							 | 
							cdleme7b | 
							 |-  ( ( ( K e. HL /\ W e. H ) /\ ( R e. A /\ -. R .<_ W ) /\ ( S e. A /\ -. S .<_ ( P .\/ Q ) /\ R .<_ ( P .\/ Q ) ) ) -> ( ( R .\/ S ) ./\ W ) e. A )  | 
						
						
							| 28 | 
							
								15 23 24 20 25 27
							 | 
							syl113anc | 
							 |-  ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( ( R e. A /\ -. R .<_ W ) /\ ( S e. A /\ -. S .<_ W ) ) /\ ( P =/= Q /\ R .<_ ( P .\/ Q ) /\ -. S .<_ ( P .\/ Q ) ) ) -> ( ( R .\/ S ) ./\ W ) e. A )  | 
						
						
							| 29 | 
							
								12 2 4
							 | 
							hlatjcl | 
							 |-  ( ( K e. HL /\ F e. A /\ ( ( R .\/ S ) ./\ W ) e. A ) -> ( F .\/ ( ( R .\/ S ) ./\ W ) ) e. ( Base ` K ) )  | 
						
						
							| 30 | 
							
								9 22 28 29
							 | 
							syl3anc | 
							 |-  ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( ( R e. A /\ -. R .<_ W ) /\ ( S e. A /\ -. S .<_ W ) ) /\ ( P =/= Q /\ R .<_ ( P .\/ Q ) /\ -. S .<_ ( P .\/ Q ) ) ) -> ( F .\/ ( ( R .\/ S ) ./\ W ) ) e. ( Base ` K ) )  | 
						
						
							| 31 | 
							
								9
							 | 
							hllatd | 
							 |-  ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( ( R e. A /\ -. R .<_ W ) /\ ( S e. A /\ -. S .<_ W ) ) /\ ( P =/= Q /\ R .<_ ( P .\/ Q ) /\ -. S .<_ ( P .\/ Q ) ) ) -> K e. Lat )  | 
						
						
							| 32 | 
							
								
							 | 
							eqid | 
							 |-  ( Lines ` K ) = ( Lines ` K )  | 
						
						
							| 33 | 
							
								
							 | 
							eqid | 
							 |-  ( pmap ` K ) = ( pmap ` K )  | 
						
						
							| 34 | 
							
								2 4 32 33
							 | 
							linepmap | 
							 |-  ( ( ( K e. Lat /\ P e. A /\ Q e. A ) /\ P =/= Q ) -> ( ( pmap ` K ) ` ( P .\/ Q ) ) e. ( Lines ` K ) )  | 
						
						
							| 35 | 
							
								31 10 11 19 34
							 | 
							syl31anc | 
							 |-  ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( ( R e. A /\ -. R .<_ W ) /\ ( S e. A /\ -. S .<_ W ) ) /\ ( P =/= Q /\ R .<_ ( P .\/ Q ) /\ -. S .<_ ( P .\/ Q ) ) ) -> ( ( pmap ` K ) ` ( P .\/ Q ) ) e. ( Lines ` K ) )  | 
						
						
							| 36 | 
							
								
							 | 
							simp2ll | 
							 |-  ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( ( R e. A /\ -. R .<_ W ) /\ ( S e. A /\ -. S .<_ W ) ) /\ ( P =/= Q /\ R .<_ ( P .\/ Q ) /\ -. S .<_ ( P .\/ Q ) ) ) -> R e. A )  | 
						
						
							| 37 | 
							
								12 2 4
							 | 
							hlatjcl | 
							 |-  ( ( K e. HL /\ R e. A /\ S e. A ) -> ( R .\/ S ) e. ( Base ` K ) )  | 
						
						
							| 38 | 
							
								9 36 24 37
							 | 
							syl3anc | 
							 |-  ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( ( R e. A /\ -. R .<_ W ) /\ ( S e. A /\ -. S .<_ W ) ) /\ ( P =/= Q /\ R .<_ ( P .\/ Q ) /\ -. S .<_ ( P .\/ Q ) ) ) -> ( R .\/ S ) e. ( Base ` K ) )  | 
						
						
							| 39 | 
							
								
							 | 
							simp11r | 
							 |-  ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( ( R e. A /\ -. R .<_ W ) /\ ( S e. A /\ -. S .<_ W ) ) /\ ( P =/= Q /\ R .<_ ( P .\/ Q ) /\ -. S .<_ ( P .\/ Q ) ) ) -> W e. H )  | 
						
						
							| 40 | 
							
								12 5
							 | 
							lhpbase | 
							 |-  ( W e. H -> W e. ( Base ` K ) )  | 
						
						
							| 41 | 
							
								39 40
							 | 
							syl | 
							 |-  ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( ( R e. A /\ -. R .<_ W ) /\ ( S e. A /\ -. S .<_ W ) ) /\ ( P =/= Q /\ R .<_ ( P .\/ Q ) /\ -. S .<_ ( P .\/ Q ) ) ) -> W e. ( Base ` K ) )  | 
						
						
							| 42 | 
							
								12 1 3
							 | 
							latmle2 | 
							 |-  ( ( K e. Lat /\ ( R .\/ S ) e. ( Base ` K ) /\ W e. ( Base ` K ) ) -> ( ( R .\/ S ) ./\ W ) .<_ W )  | 
						
						
							| 43 | 
							
								31 38 41 42
							 | 
							syl3anc | 
							 |-  ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( ( R e. A /\ -. R .<_ W ) /\ ( S e. A /\ -. S .<_ W ) ) /\ ( P =/= Q /\ R .<_ ( P .\/ Q ) /\ -. S .<_ ( P .\/ Q ) ) ) -> ( ( R .\/ S ) ./\ W ) .<_ W )  | 
						
						
							| 44 | 
							
								1 2 3 4 5 6 7
							 | 
							cdleme3 | 
							 |-  ( ( ( K e. HL /\ W e. H ) /\ ( ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) /\ ( S e. A /\ -. S .<_ W ) ) /\ ( P =/= Q /\ -. S .<_ ( P .\/ Q ) ) ) -> -. F .<_ W )  | 
						
						
							| 45 | 
							
								15 16 17 18 19 20 44
							 | 
							syl132anc | 
							 |-  ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( ( R e. A /\ -. R .<_ W ) /\ ( S e. A /\ -. S .<_ W ) ) /\ ( P =/= Q /\ R .<_ ( P .\/ Q ) /\ -. S .<_ ( P .\/ Q ) ) ) -> -. F .<_ W )  | 
						
						
							| 46 | 
							
								
							 | 
							nbrne2 | 
							 |-  ( ( ( ( R .\/ S ) ./\ W ) .<_ W /\ -. F .<_ W ) -> ( ( R .\/ S ) ./\ W ) =/= F )  | 
						
						
							| 47 | 
							
								46
							 | 
							necomd | 
							 |-  ( ( ( ( R .\/ S ) ./\ W ) .<_ W /\ -. F .<_ W ) -> F =/= ( ( R .\/ S ) ./\ W ) )  | 
						
						
							| 48 | 
							
								43 45 47
							 | 
							syl2anc | 
							 |-  ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( ( R e. A /\ -. R .<_ W ) /\ ( S e. A /\ -. S .<_ W ) ) /\ ( P =/= Q /\ R .<_ ( P .\/ Q ) /\ -. S .<_ ( P .\/ Q ) ) ) -> F =/= ( ( R .\/ S ) ./\ W ) )  | 
						
						
							| 49 | 
							
								2 4 32 33
							 | 
							linepmap | 
							 |-  ( ( ( K e. Lat /\ F e. A /\ ( ( R .\/ S ) ./\ W ) e. A ) /\ F =/= ( ( R .\/ S ) ./\ W ) ) -> ( ( pmap ` K ) ` ( F .\/ ( ( R .\/ S ) ./\ W ) ) ) e. ( Lines ` K ) )  | 
						
						
							| 50 | 
							
								31 22 28 48 49
							 | 
							syl31anc | 
							 |-  ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( ( R e. A /\ -. R .<_ W ) /\ ( S e. A /\ -. S .<_ W ) ) /\ ( P =/= Q /\ R .<_ ( P .\/ Q ) /\ -. S .<_ ( P .\/ Q ) ) ) -> ( ( pmap ` K ) ` ( F .\/ ( ( R .\/ S ) ./\ W ) ) ) e. ( Lines ` K ) )  | 
						
						
							| 51 | 
							
								12 4
							 | 
							atbase | 
							 |-  ( F e. A -> F e. ( Base ` K ) )  | 
						
						
							| 52 | 
							
								22 51
							 | 
							syl | 
							 |-  ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( ( R e. A /\ -. R .<_ W ) /\ ( S e. A /\ -. S .<_ W ) ) /\ ( P =/= Q /\ R .<_ ( P .\/ Q ) /\ -. S .<_ ( P .\/ Q ) ) ) -> F e. ( Base ` K ) )  | 
						
						
							| 53 | 
							
								12 3
							 | 
							latmcl | 
							 |-  ( ( K e. Lat /\ ( R .\/ S ) e. ( Base ` K ) /\ W e. ( Base ` K ) ) -> ( ( R .\/ S ) ./\ W ) e. ( Base ` K ) )  | 
						
						
							| 54 | 
							
								31 38 41 53
							 | 
							syl3anc | 
							 |-  ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( ( R e. A /\ -. R .<_ W ) /\ ( S e. A /\ -. S .<_ W ) ) /\ ( P =/= Q /\ R .<_ ( P .\/ Q ) /\ -. S .<_ ( P .\/ Q ) ) ) -> ( ( R .\/ S ) ./\ W ) e. ( Base ` K ) )  | 
						
						
							| 55 | 
							
								12 1 2
							 | 
							latlej2 | 
							 |-  ( ( K e. Lat /\ F e. ( Base ` K ) /\ ( ( R .\/ S ) ./\ W ) e. ( Base ` K ) ) -> ( ( R .\/ S ) ./\ W ) .<_ ( F .\/ ( ( R .\/ S ) ./\ W ) ) )  | 
						
						
							| 56 | 
							
								31 52 54 55
							 | 
							syl3anc | 
							 |-  ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( ( R e. A /\ -. R .<_ W ) /\ ( S e. A /\ -. S .<_ W ) ) /\ ( P =/= Q /\ R .<_ ( P .\/ Q ) /\ -. S .<_ ( P .\/ Q ) ) ) -> ( ( R .\/ S ) ./\ W ) .<_ ( F .\/ ( ( R .\/ S ) ./\ W ) ) )  | 
						
						
							| 57 | 
							
								1 2 3 4 5 6 7 8 26
							 | 
							cdleme7c | 
							 |-  ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ Q e. A ) /\ ( ( R e. A /\ -. R .<_ W ) /\ ( S e. A /\ -. S .<_ W ) ) /\ ( P =/= Q /\ R .<_ ( P .\/ Q ) /\ -. S .<_ ( P .\/ Q ) ) ) -> U =/= ( ( R .\/ S ) ./\ W ) )  | 
						
						
							| 58 | 
							
								15 16 11 23 18 19 25 20 57
							 | 
							syl323anc | 
							 |-  ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( ( R e. A /\ -. R .<_ W ) /\ ( S e. A /\ -. S .<_ W ) ) /\ ( P =/= Q /\ R .<_ ( P .\/ Q ) /\ -. S .<_ ( P .\/ Q ) ) ) -> U =/= ( ( R .\/ S ) ./\ W ) )  | 
						
						
							| 59 | 
							
								58
							 | 
							necomd | 
							 |-  ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( ( R e. A /\ -. R .<_ W ) /\ ( S e. A /\ -. S .<_ W ) ) /\ ( P =/= Q /\ R .<_ ( P .\/ Q ) /\ -. S .<_ ( P .\/ Q ) ) ) -> ( ( R .\/ S ) ./\ W ) =/= U )  | 
						
						
							| 60 | 
							
								
							 | 
							hlatl | 
							 |-  ( K e. HL -> K e. AtLat )  | 
						
						
							| 61 | 
							
								9 60
							 | 
							syl | 
							 |-  ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( ( R e. A /\ -. R .<_ W ) /\ ( S e. A /\ -. S .<_ W ) ) /\ ( P =/= Q /\ R .<_ ( P .\/ Q ) /\ -. S .<_ ( P .\/ Q ) ) ) -> K e. AtLat )  | 
						
						
							| 62 | 
							
								1 2 3 4 5 6
							 | 
							lhpat2 | 
							 |-  ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ P =/= Q ) ) -> U e. A )  | 
						
						
							| 63 | 
							
								15 16 11 19 62
							 | 
							syl112anc | 
							 |-  ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( ( R e. A /\ -. R .<_ W ) /\ ( S e. A /\ -. S .<_ W ) ) /\ ( P =/= Q /\ R .<_ ( P .\/ Q ) /\ -. S .<_ ( P .\/ Q ) ) ) -> U e. A )  | 
						
						
							| 64 | 
							
								1 4
							 | 
							atncmp | 
							 |-  ( ( K e. AtLat /\ ( ( R .\/ S ) ./\ W ) e. A /\ U e. A ) -> ( -. ( ( R .\/ S ) ./\ W ) .<_ U <-> ( ( R .\/ S ) ./\ W ) =/= U ) )  | 
						
						
							| 65 | 
							
								61 28 63 64
							 | 
							syl3anc | 
							 |-  ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( ( R e. A /\ -. R .<_ W ) /\ ( S e. A /\ -. S .<_ W ) ) /\ ( P =/= Q /\ R .<_ ( P .\/ Q ) /\ -. S .<_ ( P .\/ Q ) ) ) -> ( -. ( ( R .\/ S ) ./\ W ) .<_ U <-> ( ( R .\/ S ) ./\ W ) =/= U ) )  | 
						
						
							| 66 | 
							
								59 65
							 | 
							mpbird | 
							 |-  ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( ( R e. A /\ -. R .<_ W ) /\ ( S e. A /\ -. S .<_ W ) ) /\ ( P =/= Q /\ R .<_ ( P .\/ Q ) /\ -. S .<_ ( P .\/ Q ) ) ) -> -. ( ( R .\/ S ) ./\ W ) .<_ U )  | 
						
						
							| 67 | 
							
								12 1 3
							 | 
							latlem12 | 
							 |-  ( ( K e. Lat /\ ( ( ( R .\/ S ) ./\ W ) e. ( Base ` K ) /\ ( P .\/ Q ) e. ( Base ` K ) /\ W e. ( Base ` K ) ) ) -> ( ( ( ( R .\/ S ) ./\ W ) .<_ ( P .\/ Q ) /\ ( ( R .\/ S ) ./\ W ) .<_ W ) <-> ( ( R .\/ S ) ./\ W ) .<_ ( ( P .\/ Q ) ./\ W ) ) )  | 
						
						
							| 68 | 
							
								31 54 14 41 67
							 | 
							syl13anc | 
							 |-  ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( ( R e. A /\ -. R .<_ W ) /\ ( S e. A /\ -. S .<_ W ) ) /\ ( P =/= Q /\ R .<_ ( P .\/ Q ) /\ -. S .<_ ( P .\/ Q ) ) ) -> ( ( ( ( R .\/ S ) ./\ W ) .<_ ( P .\/ Q ) /\ ( ( R .\/ S ) ./\ W ) .<_ W ) <-> ( ( R .\/ S ) ./\ W ) .<_ ( ( P .\/ Q ) ./\ W ) ) )  | 
						
						
							| 69 | 
							
								68
							 | 
							biimpd | 
							 |-  ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( ( R e. A /\ -. R .<_ W ) /\ ( S e. A /\ -. S .<_ W ) ) /\ ( P =/= Q /\ R .<_ ( P .\/ Q ) /\ -. S .<_ ( P .\/ Q ) ) ) -> ( ( ( ( R .\/ S ) ./\ W ) .<_ ( P .\/ Q ) /\ ( ( R .\/ S ) ./\ W ) .<_ W ) -> ( ( R .\/ S ) ./\ W ) .<_ ( ( P .\/ Q ) ./\ W ) ) )  | 
						
						
							| 70 | 
							
								43 69
							 | 
							mpan2d | 
							 |-  ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( ( R e. A /\ -. R .<_ W ) /\ ( S e. A /\ -. S .<_ W ) ) /\ ( P =/= Q /\ R .<_ ( P .\/ Q ) /\ -. S .<_ ( P .\/ Q ) ) ) -> ( ( ( R .\/ S ) ./\ W ) .<_ ( P .\/ Q ) -> ( ( R .\/ S ) ./\ W ) .<_ ( ( P .\/ Q ) ./\ W ) ) )  | 
						
						
							| 71 | 
							
								6
							 | 
							breq2i | 
							 |-  ( ( ( R .\/ S ) ./\ W ) .<_ U <-> ( ( R .\/ S ) ./\ W ) .<_ ( ( P .\/ Q ) ./\ W ) )  | 
						
						
							| 72 | 
							
								70 71
							 | 
							imbitrrdi | 
							 |-  ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( ( R e. A /\ -. R .<_ W ) /\ ( S e. A /\ -. S .<_ W ) ) /\ ( P =/= Q /\ R .<_ ( P .\/ Q ) /\ -. S .<_ ( P .\/ Q ) ) ) -> ( ( ( R .\/ S ) ./\ W ) .<_ ( P .\/ Q ) -> ( ( R .\/ S ) ./\ W ) .<_ U ) )  | 
						
						
							| 73 | 
							
								66 72
							 | 
							mtod | 
							 |-  ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( ( R e. A /\ -. R .<_ W ) /\ ( S e. A /\ -. S .<_ W ) ) /\ ( P =/= Q /\ R .<_ ( P .\/ Q ) /\ -. S .<_ ( P .\/ Q ) ) ) -> -. ( ( R .\/ S ) ./\ W ) .<_ ( P .\/ Q ) )  | 
						
						
							| 74 | 
							
								
							 | 
							nbrne1 | 
							 |-  ( ( ( ( R .\/ S ) ./\ W ) .<_ ( F .\/ ( ( R .\/ S ) ./\ W ) ) /\ -. ( ( R .\/ S ) ./\ W ) .<_ ( P .\/ Q ) ) -> ( F .\/ ( ( R .\/ S ) ./\ W ) ) =/= ( P .\/ Q ) )  | 
						
						
							| 75 | 
							
								74
							 | 
							necomd | 
							 |-  ( ( ( ( R .\/ S ) ./\ W ) .<_ ( F .\/ ( ( R .\/ S ) ./\ W ) ) /\ -. ( ( R .\/ S ) ./\ W ) .<_ ( P .\/ Q ) ) -> ( P .\/ Q ) =/= ( F .\/ ( ( R .\/ S ) ./\ W ) ) )  | 
						
						
							| 76 | 
							
								56 73 75
							 | 
							syl2anc | 
							 |-  ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( ( R e. A /\ -. R .<_ W ) /\ ( S e. A /\ -. S .<_ W ) ) /\ ( P =/= Q /\ R .<_ ( P .\/ Q ) /\ -. S .<_ ( P .\/ Q ) ) ) -> ( P .\/ Q ) =/= ( F .\/ ( ( R .\/ S ) ./\ W ) ) )  | 
						
						
							| 77 | 
							
								1 2 3 4 5 6 7 8 26
							 | 
							cdleme7e | 
							 |-  ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( ( R e. A /\ -. R .<_ W ) /\ ( S e. A /\ -. S .<_ W ) ) /\ ( P =/= Q /\ R .<_ ( P .\/ Q ) /\ -. S .<_ ( P .\/ Q ) ) ) -> G =/= ( 0. ` K ) )  | 
						
						
							| 78 | 
							
								8 77
							 | 
							eqnetrrid | 
							 |-  ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( ( R e. A /\ -. R .<_ W ) /\ ( S e. A /\ -. S .<_ W ) ) /\ ( P =/= Q /\ R .<_ ( P .\/ Q ) /\ -. S .<_ ( P .\/ Q ) ) ) -> ( ( P .\/ Q ) ./\ ( F .\/ ( ( R .\/ S ) ./\ W ) ) ) =/= ( 0. ` K ) )  | 
						
						
							| 79 | 
							
								
							 | 
							eqid | 
							 |-  ( 0. ` K ) = ( 0. ` K )  | 
						
						
							| 80 | 
							
								12 3 79 4 32 33
							 | 
							2lnat | 
							 |-  ( ( ( K e. HL /\ ( P .\/ Q ) e. ( Base ` K ) /\ ( F .\/ ( ( R .\/ S ) ./\ W ) ) e. ( Base ` K ) ) /\ ( ( ( pmap ` K ) ` ( P .\/ Q ) ) e. ( Lines ` K ) /\ ( ( pmap ` K ) ` ( F .\/ ( ( R .\/ S ) ./\ W ) ) ) e. ( Lines ` K ) ) /\ ( ( P .\/ Q ) =/= ( F .\/ ( ( R .\/ S ) ./\ W ) ) /\ ( ( P .\/ Q ) ./\ ( F .\/ ( ( R .\/ S ) ./\ W ) ) ) =/= ( 0. ` K ) ) ) -> ( ( P .\/ Q ) ./\ ( F .\/ ( ( R .\/ S ) ./\ W ) ) ) e. A )  | 
						
						
							| 81 | 
							
								9 14 30 35 50 76 78 80
							 | 
							syl322anc | 
							 |-  ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( ( R e. A /\ -. R .<_ W ) /\ ( S e. A /\ -. S .<_ W ) ) /\ ( P =/= Q /\ R .<_ ( P .\/ Q ) /\ -. S .<_ ( P .\/ Q ) ) ) -> ( ( P .\/ Q ) ./\ ( F .\/ ( ( R .\/ S ) ./\ W ) ) ) e. A )  | 
						
						
							| 82 | 
							
								8 81
							 | 
							eqeltrid | 
							 |-  ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( ( R e. A /\ -. R .<_ W ) /\ ( S e. A /\ -. S .<_ W ) ) /\ ( P =/= Q /\ R .<_ ( P .\/ Q ) /\ -. S .<_ ( P .\/ Q ) ) ) -> G e. A )  |