| Step | Hyp | Ref
| Expression |
| 1 | | nllytop 21276 |
. . . . . 6
 𝑛Locally
  |
| 2 | 1 | adantl 482 |
. . . . 5
 
𝑛Locally 
  |
| 3 | | nlly2i 21279 |
. . . . . . . . 9
 
𝑛Locally
   

 ↾t     |
| 4 | 3 | 3adant1l 1318 |
. . . . . . . 8
   𝑛Locally 
   

 ↾t     |
| 5 | | simprl 794 |
. . . . . . . . . . . . 13
    
𝑛Locally 

   

↾t       |
| 6 | | simprr2 1110 |
. . . . . . . . . . . . . . 15
    
𝑛Locally 

   

↾t       |
| 7 | | simplr 792 |
. . . . . . . . . . . . . . . 16
    
𝑛Locally 

   

↾t        |
| 8 | 7 | elpwid 4170 |
. . . . . . . . . . . . . . 15
    
𝑛Locally 

   

↾t       |
| 9 | 6, 8 | sstrd 3613 |
. . . . . . . . . . . . . 14
    
𝑛Locally 

   

↾t       |
| 10 | | selpw 4165 |
. . . . . . . . . . . . . 14
 
  |
| 11 | 9, 10 | sylibr 224 |
. . . . . . . . . . . . 13
    
𝑛Locally 

   

↾t        |
| 12 | 5, 11 | elind 3798 |
. . . . . . . . . . . 12
    
𝑛Locally 

   

↾t          |
| 13 | | simprr1 1109 |
. . . . . . . . . . . 12
    
𝑛Locally 

   

↾t       |
| 14 | | simpll1 1100 |
. . . . . . . . . . . . . . . 16
    
𝑛Locally 

   

↾t     
𝑛Locally    |
| 15 | 14 | simprd 479 |
. . . . . . . . . . . . . . 15
    
𝑛Locally 

   

↾t     𝑛Locally   |
| 16 | 15, 1 | syl 17 |
. . . . . . . . . . . . . 14
    
𝑛Locally 

   

↾t       |
| 17 | | restabs 20969 |
. . . . . . . . . . . . . 14
      ↾t  ↾t   ↾t    |
| 18 | 16, 6, 7, 17 | syl3anc 1326 |
. . . . . . . . . . . . 13
    
𝑛Locally 

   

↾t       ↾t  ↾t   ↾t    |
| 19 | | simprr3 1111 |
. . . . . . . . . . . . . 14
    
𝑛Locally 

   

↾t      ↾t    |
| 20 | 14 | simpld 475 |
. . . . . . . . . . . . . . 15
    
𝑛Locally 

   

↾t       |
| 21 | | restlly.1 |
. . . . . . . . . . . . . . . . 17
 

  
↾t    |
| 22 | 21 | expr 643 |
. . . . . . . . . . . . . . . 16
 
  
↾t     |
| 23 | 22 | ralrimiva 2966 |
. . . . . . . . . . . . . . 15
  

↾t     |
| 24 | 20, 23 | syl 17 |
. . . . . . . . . . . . . 14
    
𝑛Locally 

   

↾t      

↾t     |
| 25 | | df-ss 3588 |
. . . . . . . . . . . . . . . 16

    |
| 26 | 6, 25 | sylib 208 |
. . . . . . . . . . . . . . 15
    
𝑛Locally 

   

↾t         |
| 27 | | elrestr 16089 |
. . . . . . . . . . . . . . . 16
 


   ↾t    |
| 28 | 16, 7, 5, 27 | syl3anc 1326 |
. . . . . . . . . . . . . . 15
    
𝑛Locally 

   

↾t        ↾t    |
| 29 | 26, 28 | eqeltrrd 2702 |
. . . . . . . . . . . . . 14
    
𝑛Locally 

   

↾t      ↾t    |
| 30 | | eleq2 2690 |
. . . . . . . . . . . . . . . 16
  ↾t  
 ↾t     |
| 31 | | oveq1 6657 |
. . . . . . . . . . . . . . . . 17
  ↾t   ↾t    ↾t  ↾t    |
| 32 | 31 | eleq1d 2686 |
. . . . . . . . . . . . . . . 16
  ↾t    ↾t 
  ↾t 
↾t     |
| 33 | 30, 32 | imbi12d 334 |
. . . . . . . . . . . . . . 15
  ↾t     ↾t    
↾t    ↾t  ↾t      |
| 34 | 33 | rspcv 3305 |
. . . . . . . . . . . . . 14
  ↾t    
 ↾t    
↾t    ↾t  ↾t      |
| 35 | 19, 24, 29, 34 | syl3c 66 |
. . . . . . . . . . . . 13
    
𝑛Locally 

   

↾t       ↾t  ↾t    |
| 36 | 18, 35 | eqeltrrd 2702 |
. . . . . . . . . . . 12
    
𝑛Locally 

   

↾t      ↾t    |
| 37 | 12, 13, 36 | jca32 558 |
. . . . . . . . . . 11
    
𝑛Locally 

   

↾t          
↾t      |
| 38 | 37 | ex 450 |
. . . . . . . . . 10
   
𝑛Locally 

      ↾t         
↾t       |
| 39 | 38 | reximdv2 3014 |
. . . . . . . . 9
   
𝑛Locally 

   


↾t          ↾t      |
| 40 | 39 | rexlimdva 3031 |
. . . . . . . 8
   𝑛Locally 
  
  

↾t          ↾t      |
| 41 | 4, 40 | mpd 15 |
. . . . . . 7
   𝑛Locally 
        ↾t     |
| 42 | 41 | 3expb 1266 |
. . . . . 6
   𝑛Locally  
 
       ↾t     |
| 43 | 42 | ralrimivva 2971 |
. . . . 5
 
𝑛Locally 


       ↾t     |
| 44 | | islly 21271 |
. . . . 5
 Locally



       ↾t      |
| 45 | 2, 43, 44 | sylanbrc 698 |
. . . 4
 
𝑛Locally 
Locally   |
| 46 | 45 | ex 450 |
. . 3
  𝑛Locally
Locally    |
| 47 | 46 | ssrdv 3609 |
. 2
 𝑛Locally Locally   |
| 48 | | llyssnlly 21281 |
. . 3
Locally 𝑛Locally  |
| 49 | 48 | a1i 11 |
. 2
 Locally
𝑛Locally   |
| 50 | 47, 49 | eqssd 3620 |
1
 𝑛Locally Locally   |