| Step | Hyp | Ref | Expression | 
						
							| 1 |  | ubth.1 |  | 
						
							| 2 |  | ubth.2 |  | 
						
							| 3 |  | ubthlem.3 |  | 
						
							| 4 |  | ubthlem.4 |  | 
						
							| 5 |  | ubthlem.5 |  | 
						
							| 6 |  | ubthlem.6 |  | 
						
							| 7 |  | ubthlem.7 |  | 
						
							| 8 |  | ubthlem.8 |  | 
						
							| 9 |  | ubthlem.9 |  | 
						
							| 10 |  | ubthlem.10 |  | 
						
							| 11 |  | ubthlem.11 |  | 
						
							| 12 |  | ubthlem.12 |  | 
						
							| 13 |  | ubthlem.13 |  | 
						
							| 14 | 10 | nnrpd |  | 
						
							| 15 | 14 14 | rpaddcld |  | 
						
							| 16 | 15 12 | rpdivcld |  | 
						
							| 17 | 16 | rpred |  | 
						
							| 18 |  | oveq2 |  | 
						
							| 19 | 18 | breq1d |  | 
						
							| 20 |  | eleq1 |  | 
						
							| 21 | 19 20 | imbi12d |  | 
						
							| 22 |  | rabss |  | 
						
							| 23 | 13 22 | sylib |  | 
						
							| 24 | 23 | ad2antrr |  | 
						
							| 25 |  | bnnv |  | 
						
							| 26 | 5 25 | ax-mp |  | 
						
							| 27 | 26 | a1i |  | 
						
							| 28 | 11 | ad2antrr |  | 
						
							| 29 | 12 | ad2antrr |  | 
						
							| 30 | 29 | rpcnd |  | 
						
							| 31 |  | simpr |  | 
						
							| 32 |  | eqid |  | 
						
							| 33 | 1 32 | nvscl |  | 
						
							| 34 | 27 30 31 33 | syl3anc |  | 
						
							| 35 |  | eqid |  | 
						
							| 36 | 1 35 | nvgcl |  | 
						
							| 37 | 27 28 34 36 | syl3anc |  | 
						
							| 38 | 21 24 37 | rspcdva |  | 
						
							| 39 | 1 3 | cbncms |  | 
						
							| 40 | 5 39 | ax-mp |  | 
						
							| 41 |  | cmetmet |  | 
						
							| 42 |  | metxmet |  | 
						
							| 43 | 40 41 42 | mp2b |  | 
						
							| 44 | 43 | a1i |  | 
						
							| 45 |  | xmetsym |  | 
						
							| 46 | 44 28 37 45 | syl3anc |  | 
						
							| 47 |  | eqid |  | 
						
							| 48 |  | eqid |  | 
						
							| 49 | 1 47 48 3 | imsdval |  | 
						
							| 50 | 27 37 28 49 | syl3anc |  | 
						
							| 51 | 1 35 47 | nvpncan2 |  | 
						
							| 52 | 27 28 34 51 | syl3anc |  | 
						
							| 53 | 52 | fveq2d |  | 
						
							| 54 | 46 50 53 | 3eqtrd |  | 
						
							| 55 | 29 | rprege0d |  | 
						
							| 56 | 1 32 48 | nvsge0 |  | 
						
							| 57 | 27 55 31 56 | syl3anc |  | 
						
							| 58 | 54 57 | eqtrd |  | 
						
							| 59 | 30 | mulridd |  | 
						
							| 60 | 59 | eqcomd |  | 
						
							| 61 | 58 60 | breq12d |  | 
						
							| 62 | 1 48 | nvcl |  | 
						
							| 63 | 26 62 | mpan |  | 
						
							| 64 | 63 | adantl |  | 
						
							| 65 |  | 1red |  | 
						
							| 66 | 64 65 29 | lemul2d |  | 
						
							| 67 | 61 66 | bitr4d |  | 
						
							| 68 |  | breq2 |  | 
						
							| 69 | 68 | ralbidv |  | 
						
							| 70 | 69 | rabbidv |  | 
						
							| 71 | 1 | fvexi |  | 
						
							| 72 | 71 | rabex |  | 
						
							| 73 | 70 9 72 | fvmpt |  | 
						
							| 74 | 10 73 | syl |  | 
						
							| 75 | 74 | eleq2d |  | 
						
							| 76 |  | 2fveq3 |  | 
						
							| 77 | 76 | breq1d |  | 
						
							| 78 | 77 | ralbidv |  | 
						
							| 79 | 78 | elrab |  | 
						
							| 80 | 75 79 | bitrdi |  | 
						
							| 81 | 80 | ad2antrr |  | 
						
							| 82 | 38 67 81 | 3imtr3d |  | 
						
							| 83 |  | rsp |  | 
						
							| 84 | 83 | com12 |  | 
						
							| 85 | 84 | ad2antlr |  | 
						
							| 86 |  | xmet0 |  | 
						
							| 87 | 43 11 86 | sylancr |  | 
						
							| 88 | 12 | rpge0d |  | 
						
							| 89 | 87 88 | eqbrtrd |  | 
						
							| 90 |  | oveq2 |  | 
						
							| 91 | 90 | breq1d |  | 
						
							| 92 | 91 | elrab |  | 
						
							| 93 | 11 89 92 | sylanbrc |  | 
						
							| 94 | 13 93 | sseldd |  | 
						
							| 95 | 94 74 | eleqtrd |  | 
						
							| 96 |  | 2fveq3 |  | 
						
							| 97 | 96 | breq1d |  | 
						
							| 98 | 97 | ralbidv |  | 
						
							| 99 | 98 | elrab |  | 
						
							| 100 | 95 99 | sylib |  | 
						
							| 101 | 100 | simprd |  | 
						
							| 102 | 101 | r19.21bi |  | 
						
							| 103 | 102 | adantr |  | 
						
							| 104 | 7 | sselda |  | 
						
							| 105 |  | eqid |  | 
						
							| 106 |  | eqid |  | 
						
							| 107 |  | eqid |  | 
						
							| 108 | 3 105 4 106 107 26 6 | blocn2 |  | 
						
							| 109 | 4 | mopntopon |  | 
						
							| 110 | 43 109 | ax-mp |  | 
						
							| 111 |  | eqid |  | 
						
							| 112 | 111 105 | imsxmet |  | 
						
							| 113 | 106 | mopntopon |  | 
						
							| 114 | 6 112 113 | mp2b |  | 
						
							| 115 |  | iscncl |  | 
						
							| 116 | 110 114 115 | mp2an |  | 
						
							| 117 | 108 116 | sylib |  | 
						
							| 118 | 104 117 | syl |  | 
						
							| 119 | 118 | simpld |  | 
						
							| 120 | 119 | adantr |  | 
						
							| 121 | 120 37 | ffvelcdmd |  | 
						
							| 122 | 111 2 | nvcl |  | 
						
							| 123 | 6 121 122 | sylancr |  | 
						
							| 124 | 120 28 | ffvelcdmd |  | 
						
							| 125 | 111 2 | nvcl |  | 
						
							| 126 | 6 124 125 | sylancr |  | 
						
							| 127 | 10 | nnred |  | 
						
							| 128 | 127 | ad2antrr |  | 
						
							| 129 |  | le2add |  | 
						
							| 130 | 123 126 128 128 129 | syl22anc |  | 
						
							| 131 | 103 130 | mpan2d |  | 
						
							| 132 | 52 | fveq2d |  | 
						
							| 133 | 6 | a1i |  | 
						
							| 134 |  | eqid |  | 
						
							| 135 | 134 107 | bloln |  | 
						
							| 136 | 26 6 135 | mp3an12 |  | 
						
							| 137 | 104 136 | syl |  | 
						
							| 138 | 137 | adantr |  | 
						
							| 139 |  | eqid |  | 
						
							| 140 | 1 47 139 134 | lnosub |  | 
						
							| 141 | 27 133 138 37 28 140 | syl32anc |  | 
						
							| 142 |  | eqid |  | 
						
							| 143 | 1 32 142 134 | lnomul |  | 
						
							| 144 | 27 133 138 30 31 143 | syl32anc |  | 
						
							| 145 | 132 141 144 | 3eqtr3d |  | 
						
							| 146 | 145 | fveq2d |  | 
						
							| 147 | 119 | ffvelcdmda |  | 
						
							| 148 | 111 142 2 | nvsge0 |  | 
						
							| 149 | 133 55 147 148 | syl3anc |  | 
						
							| 150 | 146 149 | eqtrd |  | 
						
							| 151 | 111 139 2 | nvmtri |  | 
						
							| 152 | 133 121 124 151 | syl3anc |  | 
						
							| 153 | 150 152 | eqbrtrrd |  | 
						
							| 154 | 29 | rpred |  | 
						
							| 155 | 111 2 | nvcl |  | 
						
							| 156 | 6 147 155 | sylancr |  | 
						
							| 157 | 154 156 | remulcld |  | 
						
							| 158 | 123 126 | readdcld |  | 
						
							| 159 | 15 | rpred |  | 
						
							| 160 | 159 | ad2antrr |  | 
						
							| 161 |  | letr |  | 
						
							| 162 | 157 158 160 161 | syl3anc |  | 
						
							| 163 | 153 162 | mpand |  | 
						
							| 164 | 131 163 | syld |  | 
						
							| 165 | 156 160 29 | lemuldiv2d |  | 
						
							| 166 | 164 165 | sylibd |  | 
						
							| 167 | 85 166 | syld |  | 
						
							| 168 | 167 | adantld |  | 
						
							| 169 | 82 168 | syld |  | 
						
							| 170 | 169 | ralrimiva |  | 
						
							| 171 | 16 | rpxrd |  | 
						
							| 172 | 171 | adantr |  | 
						
							| 173 |  | eqid |  | 
						
							| 174 | 1 111 48 2 173 26 6 | nmoubi |  | 
						
							| 175 | 119 172 174 | syl2anc |  | 
						
							| 176 | 170 175 | mpbird |  | 
						
							| 177 | 176 | ralrimiva |  | 
						
							| 178 |  | brralrspcev |  | 
						
							| 179 | 17 177 178 | syl2anc |  |