| Step | Hyp | Ref | Expression | 
						
							| 1 |  | cdlemg12.l |  |-  .<_ = ( le ` K ) | 
						
							| 2 |  | cdlemg12.j |  |-  .\/ = ( join ` K ) | 
						
							| 3 |  | cdlemg12.m |  |-  ./\ = ( meet ` K ) | 
						
							| 4 |  | cdlemg12.a |  |-  A = ( Atoms ` K ) | 
						
							| 5 |  | cdlemg12.h |  |-  H = ( LHyp ` K ) | 
						
							| 6 |  | cdlemg12.t |  |-  T = ( ( LTrn ` K ) ` W ) | 
						
							| 7 |  | cdlemg12b.r |  |-  R = ( ( trL ` K ) ` W ) | 
						
							| 8 |  | simp1 |  |-  ( ( ( K e. HL /\ W e. H ) /\ ( ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) /\ F e. T ) /\ ( G e. T /\ P =/= Q /\ -. ( R ` G ) .<_ ( P .\/ Q ) ) ) -> ( K e. HL /\ W e. H ) ) | 
						
							| 9 |  | simp2 |  |-  ( ( ( K e. HL /\ W e. H ) /\ ( ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) /\ F e. T ) /\ ( G e. T /\ P =/= Q /\ -. ( R ` G ) .<_ ( P .\/ Q ) ) ) -> ( ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) /\ F e. T ) ) | 
						
							| 10 |  | simp31 |  |-  ( ( ( K e. HL /\ W e. H ) /\ ( ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) /\ F e. T ) /\ ( G e. T /\ P =/= Q /\ -. ( R ` G ) .<_ ( P .\/ Q ) ) ) -> G e. T ) | 
						
							| 11 |  | simp32 |  |-  ( ( ( K e. HL /\ W e. H ) /\ ( ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) /\ F e. T ) /\ ( G e. T /\ P =/= Q /\ -. ( R ` G ) .<_ ( P .\/ Q ) ) ) -> P =/= Q ) | 
						
							| 12 |  | simp21 |  |-  ( ( ( K e. HL /\ W e. H ) /\ ( ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) /\ F e. T ) /\ ( G e. T /\ P =/= Q /\ -. ( R ` G ) .<_ ( P .\/ Q ) ) ) -> ( P e. A /\ -. P .<_ W ) ) | 
						
							| 13 |  | simp22l |  |-  ( ( ( K e. HL /\ W e. H ) /\ ( ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) /\ F e. T ) /\ ( G e. T /\ P =/= Q /\ -. ( R ` G ) .<_ ( P .\/ Q ) ) ) -> Q e. A ) | 
						
							| 14 |  | simp33 |  |-  ( ( ( K e. HL /\ W e. H ) /\ ( ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) /\ F e. T ) /\ ( G e. T /\ P =/= Q /\ -. ( R ` G ) .<_ ( P .\/ Q ) ) ) -> -. ( R ` G ) .<_ ( P .\/ Q ) ) | 
						
							| 15 | 1 2 3 4 5 6 7 | cdlemg11b |  |-  ( ( ( K e. HL /\ W e. H ) /\ ( ( P e. A /\ -. P .<_ W ) /\ Q e. A ) /\ ( G e. T /\ P =/= Q /\ -. ( R ` G ) .<_ ( P .\/ Q ) ) ) -> ( P .\/ Q ) =/= ( ( G ` P ) .\/ ( G ` Q ) ) ) | 
						
							| 16 | 8 12 13 10 11 14 15 | syl123anc |  |-  ( ( ( K e. HL /\ W e. H ) /\ ( ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) /\ F e. T ) /\ ( G e. T /\ P =/= Q /\ -. ( R ` G ) .<_ ( P .\/ Q ) ) ) -> ( P .\/ Q ) =/= ( ( G ` P ) .\/ ( G ` Q ) ) ) | 
						
							| 17 |  | simp1l |  |-  ( ( ( K e. HL /\ W e. H ) /\ ( ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) /\ F e. T ) /\ ( G e. T /\ P =/= Q /\ -. ( R ` G ) .<_ ( P .\/ Q ) ) ) -> K e. HL ) | 
						
							| 18 |  | simp1r |  |-  ( ( ( K e. HL /\ W e. H ) /\ ( ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) /\ F e. T ) /\ ( G e. T /\ P =/= Q /\ -. ( R ` G ) .<_ ( P .\/ Q ) ) ) -> W e. H ) | 
						
							| 19 |  | eqid |  |-  ( ( P .\/ Q ) ./\ W ) = ( ( P .\/ Q ) ./\ W ) | 
						
							| 20 | 1 2 3 4 5 19 | cdlemg3a |  |-  ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ Q e. A ) -> ( P .\/ Q ) = ( P .\/ ( ( P .\/ Q ) ./\ W ) ) ) | 
						
							| 21 | 17 18 12 13 20 | syl211anc |  |-  ( ( ( K e. HL /\ W e. H ) /\ ( ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) /\ F e. T ) /\ ( G e. T /\ P =/= Q /\ -. ( R ` G ) .<_ ( P .\/ Q ) ) ) -> ( P .\/ Q ) = ( P .\/ ( ( P .\/ Q ) ./\ W ) ) ) | 
						
							| 22 |  | simp22 |  |-  ( ( ( K e. HL /\ W e. H ) /\ ( ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) /\ F e. T ) /\ ( G e. T /\ P =/= Q /\ -. ( R ` G ) .<_ ( P .\/ Q ) ) ) -> ( Q e. A /\ -. Q .<_ W ) ) | 
						
							| 23 | 5 6 1 2 4 3 19 | cdlemg2k |  |-  ( ( ( K e. HL /\ W e. H ) /\ ( ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ G e. T ) -> ( ( G ` P ) .\/ ( G ` Q ) ) = ( ( G ` P ) .\/ ( ( P .\/ Q ) ./\ W ) ) ) | 
						
							| 24 | 8 12 22 10 23 | syl121anc |  |-  ( ( ( K e. HL /\ W e. H ) /\ ( ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) /\ F e. T ) /\ ( G e. T /\ P =/= Q /\ -. ( R ` G ) .<_ ( P .\/ Q ) ) ) -> ( ( G ` P ) .\/ ( G ` Q ) ) = ( ( G ` P ) .\/ ( ( P .\/ Q ) ./\ W ) ) ) | 
						
							| 25 | 16 21 24 | 3netr3d |  |-  ( ( ( K e. HL /\ W e. H ) /\ ( ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) /\ F e. T ) /\ ( G e. T /\ P =/= Q /\ -. ( R ` G ) .<_ ( P .\/ Q ) ) ) -> ( P .\/ ( ( P .\/ Q ) ./\ W ) ) =/= ( ( G ` P ) .\/ ( ( P .\/ Q ) ./\ W ) ) ) | 
						
							| 26 | 1 2 3 4 5 6 19 | cdlemg12a |  |-  ( ( ( K e. HL /\ W e. H ) /\ ( ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) /\ F e. T ) /\ ( G e. T /\ P =/= Q /\ ( P .\/ ( ( P .\/ Q ) ./\ W ) ) =/= ( ( G ` P ) .\/ ( ( P .\/ Q ) ./\ W ) ) ) ) -> ( ( P .\/ ( ( P .\/ Q ) ./\ W ) ) ./\ ( ( G ` P ) .\/ ( ( P .\/ Q ) ./\ W ) ) ) .<_ ( ( F ` ( G ` P ) ) .\/ ( ( P .\/ Q ) ./\ W ) ) ) | 
						
							| 27 | 8 9 10 11 25 26 | syl113anc |  |-  ( ( ( K e. HL /\ W e. H ) /\ ( ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) /\ F e. T ) /\ ( G e. T /\ P =/= Q /\ -. ( R ` G ) .<_ ( P .\/ Q ) ) ) -> ( ( P .\/ ( ( P .\/ Q ) ./\ W ) ) ./\ ( ( G ` P ) .\/ ( ( P .\/ Q ) ./\ W ) ) ) .<_ ( ( F ` ( G ` P ) ) .\/ ( ( P .\/ Q ) ./\ W ) ) ) | 
						
							| 28 | 21 24 | oveq12d |  |-  ( ( ( K e. HL /\ W e. H ) /\ ( ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) /\ F e. T ) /\ ( G e. T /\ P =/= Q /\ -. ( R ` G ) .<_ ( P .\/ Q ) ) ) -> ( ( P .\/ Q ) ./\ ( ( G ` P ) .\/ ( G ` Q ) ) ) = ( ( P .\/ ( ( P .\/ Q ) ./\ W ) ) ./\ ( ( G ` P ) .\/ ( ( P .\/ Q ) ./\ W ) ) ) ) | 
						
							| 29 |  | simp23 |  |-  ( ( ( K e. HL /\ W e. H ) /\ ( ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) /\ F e. T ) /\ ( G e. T /\ P =/= Q /\ -. ( R ` G ) .<_ ( P .\/ Q ) ) ) -> F e. T ) | 
						
							| 30 | 5 6 1 2 4 3 19 | cdlemg2l |  |-  ( ( ( K e. HL /\ W e. H ) /\ ( ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( F e. T /\ G e. T ) ) -> ( ( F ` ( G ` P ) ) .\/ ( F ` ( G ` Q ) ) ) = ( ( F ` ( G ` P ) ) .\/ ( ( P .\/ Q ) ./\ W ) ) ) | 
						
							| 31 | 8 12 22 29 10 30 | syl122anc |  |-  ( ( ( K e. HL /\ W e. H ) /\ ( ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) /\ F e. T ) /\ ( G e. T /\ P =/= Q /\ -. ( R ` G ) .<_ ( P .\/ Q ) ) ) -> ( ( F ` ( G ` P ) ) .\/ ( F ` ( G ` Q ) ) ) = ( ( F ` ( G ` P ) ) .\/ ( ( P .\/ Q ) ./\ W ) ) ) | 
						
							| 32 | 27 28 31 | 3brtr4d |  |-  ( ( ( K e. HL /\ W e. H ) /\ ( ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) /\ F e. T ) /\ ( G e. T /\ P =/= Q /\ -. ( R ` G ) .<_ ( P .\/ Q ) ) ) -> ( ( P .\/ Q ) ./\ ( ( G ` P ) .\/ ( G ` Q ) ) ) .<_ ( ( F ` ( G ` P ) ) .\/ ( F ` ( G ` Q ) ) ) ) |