Proof of Theorem atanlogaddlem
Step | Hyp | Ref
| Expression |
1 | | 0re 10040 |
. . . 4
 |
2 | | atandm2 24604 |
. . . . . 6

arctan             |
3 | 2 | simp1bi 1076 |
. . . . 5

arctan   |
4 | 3 | recld 13934 |
. . . 4

arctan       |
5 | | leloe 10124 |
. . . 4
                         |
6 | 1, 4, 5 | sylancr 695 |
. . 3

arctan     
             |
7 | 6 | biimpa 501 |
. 2
  arctan      
           |
8 | | ax-1cn 9994 |
. . . . . . . 8
 |
9 | | ax-icn 9995 |
. . . . . . . . 9
 |
10 | | mulcl 10020 |
. . . . . . . . 9
 
     |
11 | 9, 3, 10 | sylancr 695 |
. . . . . . . 8

arctan     |
12 | | addcl 10018 |
. . . . . . . 8
  
        |
13 | 8, 11, 12 | sylancr 695 |
. . . . . . 7

arctan       |
14 | 2 | simp3bi 1078 |
. . . . . . 7

arctan       |
15 | 13, 14 | logcld 24317 |
. . . . . 6

arctan           |
16 | | subcl 10280 |
. . . . . . . 8
  
        |
17 | 8, 11, 16 | sylancr 695 |
. . . . . . 7

arctan       |
18 | 2 | simp2bi 1077 |
. . . . . . 7

arctan       |
19 | 17, 18 | logcld 24317 |
. . . . . 6

arctan     
     |
20 | 15, 19 | addcld 10059 |
. . . . 5

arctan                     |
21 | 20 | adantr 481 |
. . . 4
  arctan                   
      |
22 | | pire 24210 |
. . . . . . . 8
 |
23 | 22 | renegcli 10342 |
. . . . . . 7
  |
24 | 23 | a1i 11 |
. . . . . 6
  arctan         |
25 | 19 | adantr 481 |
. . . . . . 7
  arctan                |
26 | 25 | imcld 13935 |
. . . . . 6
  arctan             
      |
27 | 15 | adantr 481 |
. . . . . . . 8
  arctan                |
28 | 27 | imcld 13935 |
. . . . . . 7
  arctan                    |
29 | 28, 26 | readdcld 10069 |
. . . . . 6
  arctan                                  |
30 | 17 | adantr 481 |
. . . . . . . . 9
  arctan            |
31 | | im1 13895 |
. . . . . . . . . . . . 13
     |
32 | 31 | oveq1i 6660 |
. . . . . . . . . . . 12
        
            |
33 | | df-neg 10269 |
. . . . . . . . . . . 12
                |
34 | 32, 33 | eqtr4i 2647 |
. . . . . . . . . . 11
        
       
   |
35 | 11 | adantr 481 |
. . . . . . . . . . . 12
  arctan      
   |
36 | | imsub 13875 |
. . . . . . . . . . . 12
  
      
                 |
37 | 8, 35, 36 | sylancr 695 |
. . . . . . . . . . 11
  arctan                            |
38 | 3 | adantr 481 |
. . . . . . . . . . . . 13
  arctan        |
39 | | reim 13849 |
. . . . . . . . . . . . 13
        
    |
40 | 38, 39 | syl 17 |
. . . . . . . . . . . 12
  arctan             
    |
41 | 40 | negeqd 10275 |
. . . . . . . . . . 11
  arctan               
    |
42 | 34, 37, 41 | 3eqtr4a 2682 |
. . . . . . . . . 10
  arctan                     |
43 | 4 | lt0neg2d 10598 |
. . . . . . . . . . 11

arctan     
        |
44 | 43 | biimpa 501 |
. . . . . . . . . 10
  arctan             |
45 | 42, 44 | eqbrtrd 4675 |
. . . . . . . . 9
  arctan                |
46 | | argimlt0 24359 |
. . . . . . . . 9
   
                              |
47 | 30, 45, 46 | syl2anc 693 |
. . . . . . . 8
  arctan             
           |
48 | | eliooord 12233 |
. . . . . . . 8
        
                              
       |
49 | 47, 48 | syl 17 |
. . . . . . 7
  arctan                           
       |
50 | 49 | simpld 475 |
. . . . . 6
  arctan                     |
51 | 13 | adantr 481 |
. . . . . . . . . 10
  arctan            |
52 | | simpr 477 |
. . . . . . . . . . 11
  arctan            |
53 | | imadd 13874 |
. . . . . . . . . . . . 13
  
                        |
54 | 8, 35, 53 | sylancr 695 |
. . . . . . . . . . . 12
  arctan                      
     |
55 | 40 | oveq2d 6666 |
. . . . . . . . . . . 12
  arctan                        
     |
56 | 31 | oveq1i 6660 |
. . . . . . . . . . . . 13
                 |
57 | 38 | recld 13934 |
. . . . . . . . . . . . . . 15
  arctan            |
58 | 57 | recnd 10068 |
. . . . . . . . . . . . . 14
  arctan            |
59 | 58 | addid2d 10237 |
. . . . . . . . . . . . 13
  arctan                  |
60 | 56, 59 | syl5eq 2668 |
. . . . . . . . . . . 12
  arctan                      |
61 | 54, 55, 60 | 3eqtr2d 2662 |
. . . . . . . . . . 11
  arctan                    |
62 | 52, 61 | breqtrrd 4681 |
. . . . . . . . . 10
  arctan                |
63 | | argimgt0 24358 |
. . . . . . . . . 10
                                 |
64 | 51, 62, 63 | syl2anc 693 |
. . . . . . . . 9
  arctan                        |
65 | | eliooord 12233 |
. . . . . . . . 9
                                             |
66 | 64, 65 | syl 17 |
. . . . . . . 8
  arctan      
                           |
67 | 66 | simpld 475 |
. . . . . . 7
  arctan                    |
68 | 28, 26 | ltaddpos2d 10612 |
. . . . . . 7
  arctan      
           
                                         |
69 | 67, 68 | mpbid 222 |
. . . . . 6
  arctan             
                                |
70 | 24, 26, 29, 50, 69 | lttrd 10198 |
. . . . 5
  arctan                                   |
71 | 27, 25 | imaddd 13955 |
. . . . 5
  arctan                                                        |
72 | 70, 71 | breqtrrd 4681 |
. . . 4
  arctan                       
       |
73 | 22 | a1i 11 |
. . . . . 6
  arctan        |
74 | | 0red 10041 |
. . . . . . . . 9
  arctan        |
75 | 49 | simprd 479 |
. . . . . . . . 9
  arctan             
      |
76 | 26, 74, 28, 75 | ltadd2dd 10196 |
. . . . . . . 8
  arctan                                                |
77 | 28 | recnd 10068 |
. . . . . . . . 9
  arctan                    |
78 | 77 | addid1d 10236 |
. . . . . . . 8
  arctan                                  |
79 | 76, 78 | breqtrd 4679 |
. . . . . . 7
  arctan                                              |
80 | 66 | simprd 479 |
. . . . . . 7
  arctan                    |
81 | 29, 28, 73, 79, 80 | lttrd 10198 |
. . . . . 6
  arctan                                  |
82 | 29, 73, 81 | ltled 10185 |
. . . . 5
  arctan                                  |
83 | 71, 82 | eqbrtrd 4675 |
. . . 4
  arctan                              |
84 | | ellogrn 24306 |
. . . 4
              
                       
                                               |
85 | 21, 72, 83, 84 | syl3anbrc 1246 |
. . 3
  arctan                   
      |
86 | | 0red 10041 |
. . . 4
  arctan        |
87 | 11 | adantr 481 |
. . . . 5
  arctan          |
88 | | simpr 477 |
. . . . . 6
  arctan            |
89 | 3 | adantr 481 |
. . . . . . 7
  arctan     
  |
90 | 89, 39 | syl 17 |
. . . . . 6
  arctan                  |
91 | 88, 90 | eqtr2d 2657 |
. . . . 5
  arctan         
    |
92 | 87, 91 | reim0bd 13940 |
. . . 4
  arctan          |
93 | 15, 19 | addcomd 10238 |
. . . . . 6

arctan                                       |
94 | 93 | ad2antrr 762 |
. . . . 5
   arctan      
 
                                      |
95 | | logrncl 24314 |
. . . . . . . 8
   
   
             |
96 | 17, 18, 95 | syl2anc 693 |
. . . . . . 7

arctan     
     |
97 | 96 | ad2antrr 762 |
. . . . . 6
   arctan      
 
    
     |
98 | | 1re 10039 |
. . . . . . . . 9
 |
99 | 92 | adantr 481 |
. . . . . . . . 9
   arctan      
 
    |
100 | | readdcl 10019 |
. . . . . . . . 9
  
        |
101 | 98, 99, 100 | sylancr 695 |
. . . . . . . 8
   arctan      
 
      |
102 | | 0red 10041 |
. . . . . . . . 9
   arctan      
 
  |
103 | | 1red 10055 |
. . . . . . . . 9
   arctan      
 
  |
104 | | 0lt1 10550 |
. . . . . . . . . 10
 |
105 | 104 | a1i 11 |
. . . . . . . . 9
   arctan      
 
  |
106 | | addge01 10538 |
. . . . . . . . . . 11
  
            |
107 | 98, 92, 106 | sylancr 695 |
. . . . . . . . . 10
  arctan       
        |
108 | 107 | biimpa 501 |
. . . . . . . . 9
   arctan      
 
      |
109 | 102, 103,
101, 105, 108 | ltletrd 10197 |
. . . . . . . 8
   arctan      
 
      |
110 | 101, 109 | elrpd 11869 |
. . . . . . 7
   arctan      
 
      |
111 | 110 | relogcld 24369 |
. . . . . 6
   arctan      
 
          |
112 | | logrnaddcl 24321 |
. . . . . 6
                        
              |
113 | 97, 111, 112 | syl2anc 693 |
. . . . 5
   arctan      
 
                    |
114 | 94, 113 | eqeltrd 2701 |
. . . 4
   arctan      
 
                    |
115 | | logrncl 24314 |
. . . . . . 7
                     |
116 | 13, 14, 115 | syl2anc 693 |
. . . . . 6

arctan           |
117 | 116 | ad2antrr 762 |
. . . . 5
   arctan        
          |
118 | 92 | adantr 481 |
. . . . . . . 8
   arctan        
    |
119 | | resubcl 10345 |
. . . . . . . 8
  
        |
120 | 98, 118, 119 | sylancr 695 |
. . . . . . 7
   arctan        
      |
121 | | 0red 10041 |
. . . . . . . 8
   arctan        
  |
122 | | 1red 10055 |
. . . . . . . 8
   arctan        
  |
123 | 104 | a1i 11 |
. . . . . . . 8
   arctan        
  |
124 | | 1m0e1 11131 |
. . . . . . . . 9
   |
125 | | 1red 10055 |
. . . . . . . . . . 11
  arctan        |
126 | 92, 86, 125 | lesub2d 10635 |
. . . . . . . . . 10
  arctan                  |
127 | 126 | biimpa 501 |
. . . . . . . . 9
   arctan        
   
    |
128 | 124, 127 | syl5eqbrr 4689 |
. . . . . . . 8
   arctan        
      |
129 | 121, 122,
120, 123, 128 | ltletrd 10197 |
. . . . . . 7
   arctan        
      |
130 | 120, 129 | elrpd 11869 |
. . . . . 6
   arctan        
      |
131 | 130 | relogcld 24369 |
. . . . 5
   arctan        
    
     |
132 | | logrnaddcl 24321 |
. . . . 5
                                       |
133 | 117, 131,
132 | syl2anc 693 |
. . . 4
   arctan        
                    |
134 | 86, 92, 114, 133 | lecasei 10143 |
. . 3
  arctan                   
      |
135 | 85, 134 | jaodan 826 |
. 2
  arctan 
                              |
136 | 7, 135 | syldan 487 |
1
  arctan                   
      |