Step | Hyp | Ref
| Expression |
1 | | frgr3v.v |
. . . . . 6
Vtx   |
2 | | frgr3v.e |
. . . . . 6
Edg   |
3 | 1, 2 | frgrusgrfrcond 27123 |
. . . . 5
 FriendGraph  USGraph 

                  |
4 | 3 | a1i 11 |
. . . 4
        
 
 
USGraph  
FriendGraph  USGraph  
                   |
5 | | id 22 |
. . . . . . . 8
   
       |
6 | | difeq1 3721 |
. . . . . . . . 9
   
        
      |
7 | | reueq1 3140 |
. . . . . . . . 9
   
                             |
8 | 6, 7 | raleqbidv 3152 |
. . . . . . . 8
   
                                             |
9 | 5, 8 | raleqbidv 3152 |
. . . . . . 7
   
                     
       
       
 
            |
10 | 9 | anbi2d 740 |
. . . . . 6
   
   USGraph  
                 USGraph   
       
       
 
             |
11 | 10 | baibd 948 |
. . . . 5
     
USGraph   USGraph  
                  
       
       
 
            |
12 | 11 | adantl 482 |
. . . 4
        
 
 
USGraph    USGraph 

               
          
       
 
            |
13 | 4, 12 | bitrd 268 |
. . 3
        
 
 
USGraph  
FriendGraph   
       
       
 
            |
14 | | sneq 4187 |
. . . . . . . 8
       |
15 | 14 | difeq2d 3728 |
. . . . . . 7
     
             |
16 | | preq2 4269 |
. . . . . . . . . 10
         |
17 | 16 | preq1d 4274 |
. . . . . . . . 9
              
      |
18 | 17 | sseq1d 3632 |
. . . . . . . 8
                   
   |
19 | 18 | reubidv 3126 |
. . . . . . 7
  
               
 
        
   |
20 | 15, 19 | raleqbidv 3152 |
. . . . . 6
  
    
                                             |
21 | | sneq 4187 |
. . . . . . . 8
       |
22 | 21 | difeq2d 3728 |
. . . . . . 7
     
             |
23 | | preq2 4269 |
. . . . . . . . . 10
         |
24 | 23 | preq1d 4274 |
. . . . . . . . 9
              
      |
25 | 24 | sseq1d 3632 |
. . . . . . . 8
                   
   |
26 | 25 | reubidv 3126 |
. . . . . . 7
  
               
 
        
   |
27 | 22, 26 | raleqbidv 3152 |
. . . . . 6
  
    
                                             |
28 | | sneq 4187 |
. . . . . . . 8
       |
29 | 28 | difeq2d 3728 |
. . . . . . 7
     
             |
30 | | preq2 4269 |
. . . . . . . . . 10
         |
31 | 30 | preq1d 4274 |
. . . . . . . . 9
              
      |
32 | 31 | sseq1d 3632 |
. . . . . . . 8
                   
   |
33 | 32 | reubidv 3126 |
. . . . . . 7
  
               
 
        
   |
34 | 29, 33 | raleqbidv 3152 |
. . . . . 6
  
    
                                             |
35 | 20, 27, 34 | raltpg 4236 |
. . . . 5
 
            
       
 
                                                                                      |
36 | 35 | ad2antrr 762 |
. . . 4
        
 
 
USGraph   
     
    
                       
       
 
        
     
                                              |
37 | | tprot 4284 |
. . . . . . . . . 10
         |
38 | 37 | a1i 11 |
. . . . . . . . 9
             |
39 | 38 | difeq1d 3727 |
. . . . . . . 8
       
             |
40 | | necom 2847 |
. . . . . . . . . . . 12

  |
41 | 40 | biimpi 206 |
. . . . . . . . . . 11
   |
42 | | necom 2847 |
. . . . . . . . . . . 12

  |
43 | 42 | biimpi 206 |
. . . . . . . . . . 11
   |
44 | 41, 43 | anim12i 590 |
. . . . . . . . . 10
   
   |
45 | 44 | 3adant3 1081 |
. . . . . . . . 9
       |
46 | | diftpsn3 4332 |
. . . . . . . . 9
      
         |
47 | 45, 46 | syl 17 |
. . . . . . . 8
       
    
   |
48 | 39, 47 | eqtrd 2656 |
. . . . . . 7
       
    
   |
49 | 48 | raleqdv 3144 |
. . . . . 6
    
    
                                        |
50 | | tprot 4284 |
. . . . . . . . . . 11
         |
51 | 50 | eqcomi 2631 |
. . . . . . . . . 10
         |
52 | 51 | a1i 11 |
. . . . . . . . 9
             |
53 | 52 | difeq1d 3727 |
. . . . . . . 8
       
             |
54 | | id 22 |
. . . . . . . . . . 11
   |
55 | | necom 2847 |
. . . . . . . . . . . 12

  |
56 | 55 | biimpi 206 |
. . . . . . . . . . 11
   |
57 | 54, 56 | anim12ci 591 |
. . . . . . . . . 10
   
   |
58 | 57 | 3adant2 1080 |
. . . . . . . . 9
       |
59 | | diftpsn3 4332 |
. . . . . . . . 9
      
         |
60 | 58, 59 | syl 17 |
. . . . . . . 8
       
    
   |
61 | 53, 60 | eqtrd 2656 |
. . . . . . 7
       
    
   |
62 | 61 | raleqdv 3144 |
. . . . . 6
    
    
                                        |
63 | | diftpsn3 4332 |
. . . . . . . 8
      
         |
64 | 63 | 3adant1 1079 |
. . . . . . 7
       
    
   |
65 | 64 | raleqdv 3144 |
. . . . . 6
    
    
                                        |
66 | 49, 62, 65 | 3anbi123d 1399 |
. . . . 5
         
       
 
        
     
                                                   
 
        
                     
  
        
        |
67 | 66 | ad2antlr 763 |
. . . 4
        
 
 
USGraph        
       
 
        
     
                                                   
 
        
                     
  
        
        |
68 | | preq2 4269 |
. . . . . . . . . . 11
         |
69 | 68 | preq2d 4275 |
. . . . . . . . . 10
              
      |
70 | 69 | sseq1d 3632 |
. . . . . . . . 9
      
                |
71 | 70 | reubidv 3126 |
. . . . . . . 8
  
        
      
 
            |
72 | | preq2 4269 |
. . . . . . . . . . 11
         |
73 | 72 | preq2d 4275 |
. . . . . . . . . 10
              
      |
74 | 73 | sseq1d 3632 |
. . . . . . . . 9
      
                |
75 | 74 | reubidv 3126 |
. . . . . . . 8
  
        
      
 
            |
76 | 71, 75 | ralprg 4234 |
. . . . . . 7
 
         
 
        
 
        
                 
    |
77 | 76 | 3adant1 1079 |
. . . . . 6
 
         
 
        
 
        
                 
    |
78 | 72 | preq2d 4275 |
. . . . . . . . . . 11
              
      |
79 | 78 | sseq1d 3632 |
. . . . . . . . . 10
      
                |
80 | 79 | reubidv 3126 |
. . . . . . . . 9
  
        
      
 
            |
81 | | preq2 4269 |
. . . . . . . . . . . 12
         |
82 | 81 | preq2d 4275 |
. . . . . . . . . . 11
              
      |
83 | 82 | sseq1d 3632 |
. . . . . . . . . 10
      
                |
84 | 83 | reubidv 3126 |
. . . . . . . . 9
  
        
      
 
            |
85 | 80, 84 | ralprg 4234 |
. . . . . . . 8
 
         
 
        
 
        
                 
    |
86 | 85 | ancoms 469 |
. . . . . . 7
 
         
 
        
 
        
                 
    |
87 | 86 | 3adant2 1080 |
. . . . . 6
 
         
 
        
 
        
                 
    |
88 | 81 | preq2d 4275 |
. . . . . . . . . 10
              
      |
89 | 88 | sseq1d 3632 |
. . . . . . . . 9
      
                |
90 | 89 | reubidv 3126 |
. . . . . . . 8
  
        
      
 
            |
91 | 68 | preq2d 4275 |
. . . . . . . . . 10
              
      |
92 | 91 | sseq1d 3632 |
. . . . . . . . 9
      
                |
93 | 92 | reubidv 3126 |
. . . . . . . 8
  
        
      
 
            |
94 | 90, 93 | ralprg 4234 |
. . . . . . 7
 
         
 
        
 
        
                 
    |
95 | 94 | 3adant3 1081 |
. . . . . 6
 
         
 
        
 
        
                 
    |
96 | 77, 87, 95 | 3anbi123d 1399 |
. . . . 5
 
          
 
        
                     
  
        
    
  
        
                 
               

        
      
        
                 
     |
97 | 96 | ad2antrr 762 |
. . . 4
        
 
 
USGraph           
 
        
                     
  
        
    
  
        
                 
               

        
      
        
                 
     |
98 | 36, 67, 97 | 3bitrd 294 |
. . 3
        
 
 
USGraph   
     
    
                                 

        
      
        
                 
               

        
         |
99 | 1, 2 | frgr3vlem2 27138 |
. . . . . . 7
  


     
 
USGraph               
  

        |
100 | 99 | imp 445 |
. . . . . 6
        
 
 
USGraph   
        
       
  
    |
101 | | simpll1 1100 |
. . . . . . . 8
        
 
 
USGraph    |
102 | | simpll3 1102 |
. . . . . . . 8
        
 
 
USGraph    |
103 | | simpll2 1101 |
. . . . . . . 8
        
 
 
USGraph    |
104 | 101, 102,
103 | 3jca 1242 |
. . . . . . 7
        
 
 
USGraph  
   |
105 | | simplr2 1104 |
. . . . . . . 8
        
 
 
USGraph    |
106 | | simplr1 1103 |
. . . . . . . 8
        
 
 
USGraph    |
107 | 58 | simpld 475 |
. . . . . . . . 9
     |
108 | 107 | ad2antlr 763 |
. . . . . . . 8
        
 
 
USGraph    |
109 | 105, 106,
108 | 3jca 1242 |
. . . . . . 7
        
 
 
USGraph      |
110 | | tpcomb 4286 |
. . . . . . . . . 10
         |
111 | 5, 110 | syl6eq 2672 |
. . . . . . . . 9
   
       |
112 | 111 | anim1i 592 |
. . . . . . . 8
     
USGraph   
 
USGraph   |
113 | 112 | adantl 482 |
. . . . . . 7
        
 
 
USGraph  
   
USGraph   |
114 | | reueq1 3140 |
. . . . . . . . 9
    
 
 
          
      
 
            |
115 | 110, 114 | mp1i 13 |
. . . . . . . 8
        
 
 
USGraph   
        
      
 
            |
116 | 1, 2 | frgr3vlem2 27138 |
. . . . . . . . 9
  


     
 
USGraph               
  

        |
117 | 116 | imp 445 |
. . . . . . . 8
        
 
 
USGraph   
        
       
  
    |
118 | 115, 117 | bitrd 268 |
. . . . . . 7
        
 
 
USGraph   
        
       
  
    |
119 | 104, 109,
113, 118 | syl21anc 1325 |
. . . . . 6
        
 
 
USGraph   
        
       
  
    |
120 | 100, 119 | anbi12d 747 |
. . . . 5
        
 
 
USGraph                 

        
    
    
   
  

        |
121 | 103, 102,
101 | 3jca 1242 |
. . . . . . 7
        
 
 
USGraph  
   |
122 | | simplr3 1105 |
. . . . . . . 8
        
 
 
USGraph    |
123 | 106 | necomd 2849 |
. . . . . . . 8
        
 
 
USGraph    |
124 | 105 | necomd 2849 |
. . . . . . . 8
        
 
 
USGraph    |
125 | 122, 123,
124 | 3jca 1242 |
. . . . . . 7
        
 
 
USGraph      |
126 | 37 | eqeq2i 2634 |
. . . . . . . . . 10
   
   
   |
127 | 126 | biimpi 206 |
. . . . . . . . 9
   
       |
128 | 127 | anim1i 592 |
. . . . . . . 8
     
USGraph   
 
USGraph   |
129 | 128 | adantl 482 |
. . . . . . 7
        
 
 
USGraph  
   
USGraph   |
130 | | reueq1 3140 |
. . . . . . . . 9
    
 
 
          
      
 
            |
131 | 37, 130 | mp1i 13 |
. . . . . . . 8
        
 
 
USGraph   
        
      
 
            |
132 | 1, 2 | frgr3vlem2 27138 |
. . . . . . . . 9
  


     
 
USGraph               
  

        |
133 | 132 | imp 445 |
. . . . . . . 8
        
 
 
USGraph   
        
       
  
    |
134 | 131, 133 | bitrd 268 |
. . . . . . 7
        
 
 
USGraph   
        
       
  
    |
135 | 121, 125,
129, 134 | syl21anc 1325 |
. . . . . 6
        
 
 
USGraph   
        
       
  
    |
136 | 103, 101,
102 | 3jca 1242 |
. . . . . . 7
        
 
 
USGraph  
   |
137 | 123, 122,
105 | 3jca 1242 |
. . . . . . 7
        
 
 
USGraph      |
138 | | tpcoma 4285 |
. . . . . . . . . . 11
         |
139 | 138 | eqeq2i 2634 |
. . . . . . . . . 10
   
   
   |
140 | 139 | biimpi 206 |
. . . . . . . . 9
   
       |
141 | 140 | anim1i 592 |
. . . . . . . 8
     
USGraph   
 
USGraph   |
142 | 141 | adantl 482 |
. . . . . . 7
        
 
 
USGraph  
   
USGraph   |
143 | | reueq1 3140 |
. . . . . . . . 9
    
 
 
          
      
 
            |
144 | 138, 143 | mp1i 13 |
. . . . . . . 8
        
 
 
USGraph   
        
      
 
            |
145 | 1, 2 | frgr3vlem2 27138 |
. . . . . . . . 9
  


     
 
USGraph               
  

        |
146 | 145 | imp 445 |
. . . . . . . 8
        
 
 
USGraph   
        
       
  
    |
147 | 144, 146 | bitrd 268 |
. . . . . . 7
        
 
 
USGraph   
        
       
  
    |
148 | 136, 137,
142, 147 | syl21anc 1325 |
. . . . . 6
        
 
 
USGraph   
        
       
  
    |
149 | 135, 148 | anbi12d 747 |
. . . . 5
        
 
 
USGraph                 

        
    
    
   
  

        |
150 | 102, 101,
103 | 3jca 1242 |
. . . . . . 7
        
 
 
USGraph  
   |
151 | 124, 108,
106 | 3jca 1242 |
. . . . . . 7
        
 
 
USGraph      |
152 | 51 | eqeq2i 2634 |
. . . . . . . . . 10
   
   
   |
153 | 152 | biimpi 206 |
. . . . . . . . 9
   
       |
154 | 153 | anim1i 592 |
. . . . . . . 8
     
USGraph   
 
USGraph   |
155 | 154 | adantl 482 |
. . . . . . 7
        
 
 
USGraph  
   
USGraph   |
156 | | reueq1 3140 |
. . . . . . . . 9
    
 
 
          
      
 
            |
157 | 51, 156 | mp1i 13 |
. . . . . . . 8
        
 
 
USGraph   
        
      
 
            |
158 | 1, 2 | frgr3vlem2 27138 |
. . . . . . . . 9
  


     
 
USGraph               
  

        |
159 | 158 | imp 445 |
. . . . . . . 8
        
 
 
USGraph   
        
       
  
    |
160 | 157, 159 | bitrd 268 |
. . . . . . 7
        
 
 
USGraph   
        
       
  
    |
161 | 150, 151,
155, 160 | syl21anc 1325 |
. . . . . 6
        
 
 
USGraph   
        
       
  
    |
162 | | 3anrev 1049 |
. . . . . . . . 9
 
 
   |
163 | 162 | biimpi 206 |
. . . . . . . 8
 
 
   |
164 | 55, 42, 40 | 3anbi123i 1251 |
. . . . . . . . . 10
  

   |
165 | 164 | biimpi 206 |
. . . . . . . . 9
       |
166 | 165 | 3com13 1270 |
. . . . . . . 8
       |
167 | 163, 166 | anim12i 590 |
. . . . . . 7
  


   


    |
168 | | tpcoma 4285 |
. . . . . . . . . . 11
         |
169 | 37, 168 | eqtri 2644 |
. . . . . . . . . 10
         |
170 | 169 | eqeq2i 2634 |
. . . . . . . . 9
   
   
   |
171 | 170 | biimpi 206 |
. . . . . . . 8
   
       |
172 | 171 | anim1i 592 |
. . . . . . 7
     
USGraph   
 
USGraph   |
173 | | reueq1 3140 |
. . . . . . . . 9
    
 
 
          
      
 
            |
174 | 169, 173 | mp1i 13 |
. . . . . . . 8
        
 
 
USGraph   
        
      
 
            |
175 | 1, 2 | frgr3vlem2 27138 |
. . . . . . . . 9
  


     
 
USGraph               
  

        |
176 | 175 | imp 445 |
. . . . . . . 8
        
 
 
USGraph   
        
       
  
    |
177 | 174, 176 | bitrd 268 |
. . . . . . 7
        
 
 
USGraph   
        
       
  
    |
178 | 167, 172,
177 | syl2an 494 |
. . . . . 6
        
 
 
USGraph   
        
       
  
    |
179 | 161, 178 | anbi12d 747 |
. . . . 5
        
 
 
USGraph                 

        
    
    
   
  

        |
180 | 120, 149,
179 | 3anbi123d 1399 |
. . . 4
        
 
 
USGraph                  

        
      
        
                 
               

        
     
     
  
    
  
 
    
   
  

         
  
    
  
      |
181 | | prcom 4267 |
. . . . . . . . . 10
    
  |
182 | 181 | eleq1i 2692 |
. . . . . . . . 9
   
  
  |
183 | 182 | anbi2i 730 |
. . . . . . . 8
    
   
  

      |
184 | 183 | anbi2i 730 |
. . . . . . 7
     
  
    
  
      
   
  

       |
185 | | anandir 872 |
. . . . . . 7
     
  
   
     
  
    
  
    |
186 | 184, 185 | bitr4i 267 |
. . . . . 6
     
  
    
  
      
   
      |
187 | | prcom 4267 |
. . . . . . . . . 10
    
  |
188 | 187 | eleq1i 2692 |
. . . . . . . . 9
   
  
  |
189 | 188 | anbi2i 730 |
. . . . . . . 8
    
   
  

      |
190 | 189 | anbi2i 730 |
. . . . . . 7
     
  
    
  
      
   
  

       |
191 | | anandir 872 |
. . . . . . 7
     
  
   
     
  
    
  
    |
192 | 190, 191 | bitr4i 267 |
. . . . . 6
     
  
    
  
      
   
      |
193 | | prcom 4267 |
. . . . . . . . . 10
    
  |
194 | 193 | eleq1i 2692 |
. . . . . . . . 9
   
  
  |
195 | 194 | anbi2i 730 |
. . . . . . . 8
    
   
  

      |
196 | 195 | anbi2i 730 |
. . . . . . 7
     
  
    
  
      
   
  

       |
197 | | anandir 872 |
. . . . . . 7
     
  
   
     
  
    
  
    |
198 | 196, 197 | bitr4i 267 |
. . . . . 6
     
  
    
  
      
   
      |
199 | 186, 192,
198 | 3anbi123i 1251 |
. . . . 5
         
    
  
 
    
   
  

         
  
    
  
  
     
  
   
        
   
        
   
    |
200 | | 3anrot 1043 |
. . . . . . 7
    
  
          
      |
201 | | df-3an 1039 |
. . . . . . 7
    
  
        
   
      |
202 | | prcom 4267 |
. . . . . . . . 9
    
  |
203 | 202 | eleq1i 2692 |
. . . . . . . 8
   
  
  |
204 | | prcom 4267 |
. . . . . . . . 9
    
  |
205 | 204 | eleq1i 2692 |
. . . . . . . 8
   
  
  |
206 | | biid 251 |
. . . . . . . 8
   
  
  |
207 | 203, 205,
206 | 3anbi123i 1251 |
. . . . . . 7
    
  
          
      |
208 | 200, 201,
207 | 3bitr3i 290 |
. . . . . 6
     
  
   
    
  
      |
209 | | df-3an 1039 |
. . . . . . 7
    
  
        
   
      |
210 | | biid 251 |
. . . . . . . 8
   
  
  |
211 | | prcom 4267 |
. . . . . . . . 9
    
  |
212 | 211 | eleq1i 2692 |
. . . . . . . 8
   
  
  |
213 | 210, 205,
212 | 3anbi123i 1251 |
. . . . . . 7
    
  
          
      |
214 | 209, 213 | bitr3i 266 |
. . . . . 6
     
  
   
    
  
      |
215 | | df-3an 1039 |
. . . . . . 7
    
  
        
   
      |
216 | | 3anrot 1043 |
. . . . . . . 8
    
  
          
      |
217 | | 3anrot 1043 |
. . . . . . . 8
    
  
          
      |
218 | | biid 251 |
. . . . . . . . 9
   
  
  |
219 | 203, 218,
212 | 3anbi123i 1251 |
. . . . . . . 8
    
  
          
      |
220 | 216, 217,
219 | 3bitri 286 |
. . . . . . 7
    
  
          
      |
221 | 215, 220 | bitr3i 266 |
. . . . . 6
     
  
   
    
  
      |
222 | 208, 214,
221 | 3anbi123i 1251 |
. . . . 5
         
   
        
   
        
   
      
     
    
  
       
     
    |
223 | | df-3an 1039 |
. . . . . 6
     
  
       
     
    
  
    
     
  
       
     
 
  

     
    |
224 | | anabs1 850 |
. . . . . 6
         
       
     
 
  

     
      
     
    
  
       |
225 | | anidm 676 |
. . . . . 6
     
  
       
     
        
      |
226 | 223, 224,
225 | 3bitri 286 |
. . . . 5
     
  
       
     
    
  
    
  

     
   |
227 | 199, 222,
226 | 3bitri 286 |
. . . 4
         
    
  
 
    
   
  

         
  
    
  
  
  

     
   |
228 | 180, 227 | syl6bb 276 |
. . 3
        
 
 
USGraph                  

        
      
        
                 
               

        
     
  

     
    |
229 | 13, 98, 228 | 3bitrd 294 |
. 2
        
 
 
USGraph  
FriendGraph       
       |
230 | 229 | ex 450 |
1
  


     
 
USGraph  FriendGraph    
     
     |