Proof of Theorem pmaple
| Step | Hyp | Ref
| Expression |
| 1 | | pmaple.b |
. . . . . . . . . . . . . . 15
base   |
| 2 | | pmaple.l |
. . . . . . . . . . . . . . 15
le   |
| 3 | 1, 2 | postrNEW 16777 |
. . . . . . . . . . . . . 14
  PosetNEW 
              |
| 4 | 3 | exp4b 410 |
. . . . . . . . . . . . 13

PosetNEW  
              |
| 5 | 4 | 3expd 1085 |
. . . . . . . . . . . 12

PosetNEW  
                |
| 6 | 5 | com23 36 |
. . . . . . . . . . 11

PosetNEW  
                |
| 7 | 6 | com34 40 |
. . . . . . . . . 10

PosetNEW  
                |
| 8 | 7 | 3imp 1061 |
. . . . . . . . 9
  PosetNEW
 
             |
| 9 | | eqid 1884 |
. . . . . . . . . 10
AtomsNEW  AtomsNEW   |
| 10 | 1, 9 | atombase 17003 |
. . . . . . . . 9

AtomsNEW 
  |
| 11 | 8, 10 | syl5 20 |
. . . . . . . 8
  PosetNEW
 
AtomsNEW 
             |
| 12 | 11 | com34 40 |
. . . . . . 7
  PosetNEW
 
AtomsNEW 
             |
| 13 | 12 | com23 36 |
. . . . . 6
  PosetNEW
     AtomsNEW            |
| 14 | 13 | r19.21adv 2181 |
. . . . 5
  PosetNEW
     AtomsNEW            |
| 15 | | hlpos 17027 |
. . . . 5
 HL
PosetNEW |
| 16 | 14, 15 | syl3an1 1130 |
. . . 4
  HL
     AtomsNEW            |
| 17 | | ss2rab 2683 |
. . . 4
  AtomsNEW      AtomsNEW      AtomsNEW           |
| 18 | 16, 17 | syl6ibr 230 |
. . 3
  HL
     AtomsNEW      AtomsNEW        |
| 19 | | hlclat 17022 |
. . . . . 6
 HL
CLat |
| 20 | | ssrab2 2692 |
. . . . . . . . 9
 AtomsNEW 
  
AtomsNEW   |
| 21 | 1, 9 | atomssbase 17004 |
. . . . . . . . 9
AtomsNEW   |
| 22 | 20, 21 | sstri 2626 |
. . . . . . . 8
 AtomsNEW 
  
 |
| 23 | | eqid 1884 |
. . . . . . . . 9
lub  lub   |
| 24 | 1, 2, 23 | lubss 16897 |
. . . . . . . 8
  CLat  AtomsNEW    
 AtomsNEW 
  
 AtomsNEW 
     lub     AtomsNEW         lub     AtomsNEW        |
| 25 | 22, 24 | mp3an2 1179 |
. . . . . . 7
  CLat  AtomsNEW      AtomsNEW       lub     AtomsNEW         lub     AtomsNEW        |
| 26 | 25 | ex 402 |
. . . . . 6

CLat   AtomsNEW 
  
 AtomsNEW 
  
 lub     AtomsNEW         lub     AtomsNEW         |
| 27 | 19, 26 | syl 12 |
. . . . 5
 HL
  AtomsNEW      AtomsNEW      lub     AtomsNEW         lub     AtomsNEW         |
| 28 | 27 | 3ad2ant1 897 |
. . . 4
  HL
   AtomsNEW      AtomsNEW      lub     AtomsNEW         lub     AtomsNEW         |
| 29 | 1, 2, 23, 9 | hlatmstc 17047 |
. . . . . 6
  HL
  lub     AtomsNEW        |
| 30 | 29 | 3adant3 896 |
. . . . 5
  HL
  lub     AtomsNEW        |
| 31 | 1, 2, 23, 9 | hlatmstc 17047 |
. . . . . 6
  HL
  lub     AtomsNEW        |
| 32 | 31 | 3adant2 895 |
. . . . 5
  HL
  lub     AtomsNEW        |
| 33 | 30, 32 | breq12d 3351 |
. . . 4
  HL
   lub    
AtomsNEW 
       lub     AtomsNEW           |
| 34 | 28, 33 | sylibd 219 |
. . 3
  HL
   AtomsNEW      AtomsNEW          |
| 35 | 18, 34 | impbid 574 |
. 2
  HL
     AtomsNEW      AtomsNEW        |
| 36 | | pmaple.m |
. . . . 5
pmap   |
| 37 | 1, 2, 9, 36 | pmapval 17237 |
. . . 4
  HL
      AtomsNEW 
     |
| 38 | 37 | 3adant3 896 |
. . 3
  HL
      AtomsNEW 
     |
| 39 | 1, 2, 9, 36 | pmapval 17237 |
. . . 4
  HL
      AtomsNEW 
     |
| 40 | 39 | 3adant2 895 |
. . 3
  HL
      AtomsNEW 
     |
| 41 | 38, 40 | sseq12d 2646 |
. 2
  HL
           AtomsNEW 
  
 AtomsNEW 
      |
| 42 | 35, 41 | bitr4d 590 |
1
  HL
               |