| Step | Hyp | Ref
| Expression |
| 1 | | llytop 21275 |
. . 3
 Locally
  |
| 2 | | resttop 20964 |
. . 3
 
 
↾t    |
| 3 | 1, 2 | sylan 488 |
. 2
  Locally
 
↾t    |
| 4 | | restopn2 20981 |
. . . . 5
 
   ↾t 

    |
| 5 | 1, 4 | sylan 488 |
. . . 4
  Locally
   ↾t 

    |
| 6 | | simp1l 1085 |
. . . . . . . . 9
   Locally
 
 
Locally   |
| 7 | | simp2l 1087 |
. . . . . . . . 9
   Locally
 
 
  |
| 8 | | simp3 1063 |
. . . . . . . . 9
   Locally
 
 
  |
| 9 | | llyi 21277 |
. . . . . . . . 9
  Locally
  

↾t     |
| 10 | 6, 7, 8, 9 | syl3anc 1326 |
. . . . . . . 8
   Locally
 
 

  ↾t     |
| 11 | | simprl 794 |
. . . . . . . . . . . . 13
    Locally 

   

↾t       |
| 12 | | simprr1 1109 |
. . . . . . . . . . . . . 14
    Locally 

   

↾t       |
| 13 | | simpl2r 1115 |
. . . . . . . . . . . . . 14
    Locally 

   

↾t       |
| 14 | 12, 13 | sstrd 3613 |
. . . . . . . . . . . . 13
    Locally 

   

↾t       |
| 15 | 6, 1 | syl 17 |
. . . . . . . . . . . . . . 15
   Locally
 
 
  |
| 16 | 15 | adantr 481 |
. . . . . . . . . . . . . 14
    Locally 

   

↾t       |
| 17 | | simpl1r 1113 |
. . . . . . . . . . . . . 14
    Locally 

   

↾t       |
| 18 | | restopn2 20981 |
. . . . . . . . . . . . . 14
 
   ↾t 

    |
| 19 | 16, 17, 18 | syl2anc 693 |
. . . . . . . . . . . . 13
    Locally 

   

↾t      
↾t 

    |
| 20 | 11, 14, 19 | mpbir2and 957 |
. . . . . . . . . . . 12
    Locally 

   

↾t      ↾t    |
| 21 | | selpw 4165 |
. . . . . . . . . . . . 13
 
  |
| 22 | 12, 21 | sylibr 224 |
. . . . . . . . . . . 12
    Locally 

   

↾t        |
| 23 | 20, 22 | elind 3798 |
. . . . . . . . . . 11
    Locally 

   

↾t      
↾t      |
| 24 | | simprr2 1110 |
. . . . . . . . . . 11
    Locally 

   

↾t       |
| 25 | | restabs 20969 |
. . . . . . . . . . . . 13
    
↾t 
↾t  
↾t    |
| 26 | 16, 14, 17, 25 | syl3anc 1326 |
. . . . . . . . . . . 12
    Locally 

   

↾t       ↾t  ↾t   ↾t    |
| 27 | | simprr3 1111 |
. . . . . . . . . . . 12
    Locally 

   

↾t      ↾t    |
| 28 | 26, 27 | eqeltrd 2701 |
. . . . . . . . . . 11
    Locally 

   

↾t       ↾t  ↾t    |
| 29 | 23, 24, 28 | jca32 558 |
. . . . . . . . . 10
    Locally 

   

↾t        ↾t       ↾t 
↾t      |
| 30 | 29 | ex 450 |
. . . . . . . . 9
   Locally
 
 
  

↾t      
↾t       ↾t  ↾t       |
| 31 | 30 | reximdv2 3014 |
. . . . . . . 8
   Locally
 
 
 


↾t      ↾t        ↾t  ↾t      |
| 32 | 10, 31 | mpd 15 |
. . . . . . 7
   Locally
 
 
   ↾t        ↾t  ↾t     |
| 33 | 32 | 3expa 1265 |
. . . . . 6
    Locally 

 
   
↾t       
↾t 
↾t     |
| 34 | 33 | ralrimiva 2966 |
. . . . 5
   Locally
 
 

   ↾t        ↾t  ↾t     |
| 35 | 34 | ex 450 |
. . . 4
  Locally
    
   ↾t        ↾t  ↾t      |
| 36 | 5, 35 | sylbid 230 |
. . 3
  Locally
   ↾t  
   ↾t        ↾t  ↾t      |
| 37 | 36 | ralrimiv 2965 |
. 2
  Locally
   ↾t   
   ↾t        ↾t  ↾t     |
| 38 | | islly 21271 |
. 2
  ↾t  Locally
  ↾t    ↾t   
   ↾t        ↾t  ↾t      |
| 39 | 3, 37, 38 | sylanbrc 698 |
1
  Locally
 
↾t  Locally   |