| Step | Hyp | Ref | Expression | 
						
							| 1 |  | cantnfs.s |  | 
						
							| 2 |  | cantnfs.a |  | 
						
							| 3 |  | cantnfs.b |  | 
						
							| 4 |  | cantnfcl.g |  | 
						
							| 5 |  | cantnfcl.f |  | 
						
							| 6 |  | cantnfval.h |  | 
						
							| 7 |  | cantnflt.a |  | 
						
							| 8 |  | cantnflt.k |  | 
						
							| 9 |  | cantnflt.c |  | 
						
							| 10 |  | cantnflt.s |  | 
						
							| 11 |  | oen0 |  | 
						
							| 12 | 2 9 7 11 | syl21anc |  | 
						
							| 13 |  | fveq2 |  | 
						
							| 14 |  | 0ex |  | 
						
							| 15 | 6 | seqom0g |  | 
						
							| 16 | 14 15 | ax-mp |  | 
						
							| 17 | 13 16 | eqtrdi |  | 
						
							| 18 | 17 | eleq1d |  | 
						
							| 19 | 12 18 | syl5ibrcom |  | 
						
							| 20 | 9 | adantr |  | 
						
							| 21 |  | eloni |  | 
						
							| 22 | 20 21 | syl |  | 
						
							| 23 | 10 | adantr |  | 
						
							| 24 | 4 | oif |  | 
						
							| 25 |  | ffn |  | 
						
							| 26 | 24 25 | mp1i |  | 
						
							| 27 | 4 | oicl |  | 
						
							| 28 |  | ordsuc |  | 
						
							| 29 | 27 28 | mpbi |  | 
						
							| 30 |  | ordelon |  | 
						
							| 31 | 29 8 30 | sylancr |  | 
						
							| 32 |  | ordsssuc |  | 
						
							| 33 | 31 27 32 | sylancl |  | 
						
							| 34 | 8 33 | mpbird |  | 
						
							| 35 | 34 | adantr |  | 
						
							| 36 |  | vex |  | 
						
							| 37 | 36 | sucid |  | 
						
							| 38 |  | simprr |  | 
						
							| 39 | 37 38 | eleqtrrid |  | 
						
							| 40 |  | fnfvima |  | 
						
							| 41 | 26 35 39 40 | syl3anc |  | 
						
							| 42 | 23 41 | sseldd |  | 
						
							| 43 |  | ordsucss |  | 
						
							| 44 | 22 42 43 | sylc |  | 
						
							| 45 |  | suppssdm |  | 
						
							| 46 | 1 2 3 | cantnfs |  | 
						
							| 47 | 5 46 | mpbid |  | 
						
							| 48 | 47 | simpld |  | 
						
							| 49 | 45 48 | fssdm |  | 
						
							| 50 |  | onss |  | 
						
							| 51 | 3 50 | syl |  | 
						
							| 52 | 49 51 | sstrd |  | 
						
							| 53 | 52 | adantr |  | 
						
							| 54 | 8 | adantr |  | 
						
							| 55 | 38 54 | eqeltrrd |  | 
						
							| 56 |  | ordsucelsuc |  | 
						
							| 57 | 27 56 | ax-mp |  | 
						
							| 58 | 55 57 | sylibr |  | 
						
							| 59 | 24 | ffvelcdmi |  | 
						
							| 60 | 58 59 | syl |  | 
						
							| 61 | 53 60 | sseldd |  | 
						
							| 62 |  | onsuc |  | 
						
							| 63 | 61 62 | syl |  | 
						
							| 64 | 2 | adantr |  | 
						
							| 65 | 7 | adantr |  | 
						
							| 66 |  | oewordi |  | 
						
							| 67 | 63 20 64 65 66 | syl31anc |  | 
						
							| 68 | 44 67 | mpd |  | 
						
							| 69 | 38 | fveq2d |  | 
						
							| 70 |  | simprl |  | 
						
							| 71 |  | simpl |  | 
						
							| 72 |  | eleq1 |  | 
						
							| 73 |  | suceq |  | 
						
							| 74 | 73 | fveq2d |  | 
						
							| 75 |  | fveq2 |  | 
						
							| 76 |  | suceq |  | 
						
							| 77 | 75 76 | syl |  | 
						
							| 78 | 77 | oveq2d |  | 
						
							| 79 | 74 78 | eleq12d |  | 
						
							| 80 | 72 79 | imbi12d |  | 
						
							| 81 |  | eleq1 |  | 
						
							| 82 |  | suceq |  | 
						
							| 83 | 82 | fveq2d |  | 
						
							| 84 |  | fveq2 |  | 
						
							| 85 |  | suceq |  | 
						
							| 86 | 84 85 | syl |  | 
						
							| 87 | 86 | oveq2d |  | 
						
							| 88 | 83 87 | eleq12d |  | 
						
							| 89 | 81 88 | imbi12d |  | 
						
							| 90 |  | eleq1 |  | 
						
							| 91 |  | suceq |  | 
						
							| 92 | 91 | fveq2d |  | 
						
							| 93 |  | fveq2 |  | 
						
							| 94 |  | suceq |  | 
						
							| 95 | 93 94 | syl |  | 
						
							| 96 | 95 | oveq2d |  | 
						
							| 97 | 92 96 | eleq12d |  | 
						
							| 98 | 90 97 | imbi12d |  | 
						
							| 99 | 48 | adantr |  | 
						
							| 100 | 24 | ffvelcdmi |  | 
						
							| 101 | 49 | sselda |  | 
						
							| 102 | 100 101 | sylan2 |  | 
						
							| 103 | 99 102 | ffvelcdmd |  | 
						
							| 104 | 2 | adantr |  | 
						
							| 105 |  | onelon |  | 
						
							| 106 | 104 103 105 | syl2anc |  | 
						
							| 107 | 52 | sselda |  | 
						
							| 108 | 100 107 | sylan2 |  | 
						
							| 109 |  | oecl |  | 
						
							| 110 | 104 108 109 | syl2anc |  | 
						
							| 111 | 7 | adantr |  | 
						
							| 112 |  | oen0 |  | 
						
							| 113 | 104 108 111 112 | syl21anc |  | 
						
							| 114 |  | omord2 |  | 
						
							| 115 | 106 104 110 113 114 | syl31anc |  | 
						
							| 116 | 103 115 | mpbid |  | 
						
							| 117 |  | peano1 |  | 
						
							| 118 | 117 | a1i |  | 
						
							| 119 | 1 2 3 4 5 6 | cantnfsuc |  | 
						
							| 120 | 118 119 | sylan2 |  | 
						
							| 121 | 16 | oveq2i |  | 
						
							| 122 |  | omcl |  | 
						
							| 123 | 110 106 122 | syl2anc |  | 
						
							| 124 |  | oa0 |  | 
						
							| 125 | 123 124 | syl |  | 
						
							| 126 | 121 125 | eqtrid |  | 
						
							| 127 | 120 126 | eqtrd |  | 
						
							| 128 |  | oesuc |  | 
						
							| 129 | 104 108 128 | syl2anc |  | 
						
							| 130 | 116 127 129 | 3eltr4d |  | 
						
							| 131 | 130 | ex |  | 
						
							| 132 |  | ordtr |  | 
						
							| 133 | 27 132 | ax-mp |  | 
						
							| 134 |  | trsuc |  | 
						
							| 135 | 133 134 | mpan |  | 
						
							| 136 | 135 | imim1i |  | 
						
							| 137 | 2 | ad2antrr |  | 
						
							| 138 |  | eloni |  | 
						
							| 139 | 137 138 | syl |  | 
						
							| 140 | 48 | ad2antrr |  | 
						
							| 141 | 49 | ad2antrr |  | 
						
							| 142 | 24 | ffvelcdmi |  | 
						
							| 143 | 142 | ad2antrl |  | 
						
							| 144 | 141 143 | sseldd |  | 
						
							| 145 | 140 144 | ffvelcdmd |  | 
						
							| 146 |  | ordsucss |  | 
						
							| 147 | 139 145 146 | sylc |  | 
						
							| 148 |  | onelon |  | 
						
							| 149 | 137 145 148 | syl2anc |  | 
						
							| 150 |  | onsuc |  | 
						
							| 151 | 149 150 | syl |  | 
						
							| 152 | 52 | ad2antrr |  | 
						
							| 153 | 152 143 | sseldd |  | 
						
							| 154 |  | oecl |  | 
						
							| 155 | 137 153 154 | syl2anc |  | 
						
							| 156 |  | omwordi |  | 
						
							| 157 | 151 137 155 156 | syl3anc |  | 
						
							| 158 | 147 157 | mpd |  | 
						
							| 159 |  | oesuc |  | 
						
							| 160 | 137 153 159 | syl2anc |  | 
						
							| 161 | 158 160 | sseqtrrd |  | 
						
							| 162 |  | eloni |  | 
						
							| 163 | 153 162 | syl |  | 
						
							| 164 |  | vex |  | 
						
							| 165 | 164 | sucid |  | 
						
							| 166 | 164 | sucex |  | 
						
							| 167 | 166 | epeli |  | 
						
							| 168 | 165 167 | mpbir |  | 
						
							| 169 |  | ovexd |  | 
						
							| 170 | 1 2 3 4 5 | cantnfcl |  | 
						
							| 171 | 170 | simpld |  | 
						
							| 172 | 4 | oiiso |  | 
						
							| 173 | 169 171 172 | syl2anc |  | 
						
							| 174 | 173 | ad2antrr |  | 
						
							| 175 | 135 | ad2antrl |  | 
						
							| 176 |  | simprl |  | 
						
							| 177 |  | isorel |  | 
						
							| 178 | 174 175 176 177 | syl12anc |  | 
						
							| 179 | 168 178 | mpbii |  | 
						
							| 180 |  | fvex |  | 
						
							| 181 | 180 | epeli |  | 
						
							| 182 | 179 181 | sylib |  | 
						
							| 183 |  | ordsucss |  | 
						
							| 184 | 163 182 183 | sylc |  | 
						
							| 185 | 24 | ffvelcdmi |  | 
						
							| 186 | 175 185 | syl |  | 
						
							| 187 | 152 186 | sseldd |  | 
						
							| 188 |  | onsuc |  | 
						
							| 189 | 187 188 | syl |  | 
						
							| 190 | 7 | ad2antrr |  | 
						
							| 191 |  | oewordi |  | 
						
							| 192 | 189 153 137 190 191 | syl31anc |  | 
						
							| 193 | 184 192 | mpd |  | 
						
							| 194 |  | simprr |  | 
						
							| 195 | 193 194 | sseldd |  | 
						
							| 196 |  | peano2 |  | 
						
							| 197 | 196 | ad2antlr |  | 
						
							| 198 | 6 | cantnfvalf |  | 
						
							| 199 | 198 | ffvelcdmi |  | 
						
							| 200 | 197 199 | syl |  | 
						
							| 201 |  | omcl |  | 
						
							| 202 | 155 149 201 | syl2anc |  | 
						
							| 203 |  | oaord |  | 
						
							| 204 | 200 155 202 203 | syl3anc |  | 
						
							| 205 | 195 204 | mpbid |  | 
						
							| 206 | 1 2 3 4 5 6 | cantnfsuc |  | 
						
							| 207 | 196 206 | sylan2 |  | 
						
							| 208 | 207 | adantr |  | 
						
							| 209 |  | omsuc |  | 
						
							| 210 | 155 149 209 | syl2anc |  | 
						
							| 211 | 205 208 210 | 3eltr4d |  | 
						
							| 212 | 161 211 | sseldd |  | 
						
							| 213 | 212 | exp32 |  | 
						
							| 214 | 213 | a2d |  | 
						
							| 215 | 136 214 | syl5 |  | 
						
							| 216 | 215 | expcom |  | 
						
							| 217 | 80 89 98 131 216 | finds2 |  | 
						
							| 218 | 70 71 58 217 | syl3c |  | 
						
							| 219 | 69 218 | eqeltrd |  | 
						
							| 220 | 68 219 | sseldd |  | 
						
							| 221 | 220 | rexlimdvaa |  | 
						
							| 222 |  | peano2 |  | 
						
							| 223 | 170 222 | simpl2im |  | 
						
							| 224 |  | elnn |  | 
						
							| 225 | 8 223 224 | syl2anc |  | 
						
							| 226 |  | nn0suc |  | 
						
							| 227 | 225 226 | syl |  | 
						
							| 228 | 19 221 227 | mpjaod |  |