| Step | 
						Hyp | 
						Ref | 
						Expression | 
					
						
							| 1 | 
							
								
							 | 
							itscnhlc0yqe.q | 
							   | 
						
						
							| 2 | 
							
								
							 | 
							itscnhlc0yqe.t | 
							   | 
						
						
							| 3 | 
							
								
							 | 
							itscnhlc0yqe.u | 
							   | 
						
						
							| 4 | 
							
								
							 | 
							recn | 
							   | 
						
						
							| 5 | 
							
								4
							 | 
							adantr | 
							   | 
						
						
							| 6 | 
							
								5
							 | 
							3ad2ant1 | 
							   | 
						
						
							| 7 | 
							
								6
							 | 
							3ad2ant1 | 
							   | 
						
						
							| 8 | 
							
								
							 | 
							simp2 | 
							   | 
						
						
							| 9 | 
							
								8
							 | 
							3ad2ant1 | 
							   | 
						
						
							| 10 | 
							
								
							 | 
							simpr | 
							   | 
						
						
							| 11 | 
							
								10
							 | 
							3ad2ant3 | 
							   | 
						
						
							| 12 | 
							
								9 11
							 | 
							remulcld | 
							   | 
						
						
							| 13 | 
							
								12
							 | 
							recnd | 
							   | 
						
						
							| 14 | 
							
								
							 | 
							recn | 
							   | 
						
						
							| 15 | 
							
								14
							 | 
							adantr | 
							   | 
						
						
							| 16 | 
							
								15
							 | 
							3ad2ant3 | 
							   | 
						
						
							| 17 | 
							
								
							 | 
							simp3 | 
							   | 
						
						
							| 18 | 
							
								17
							 | 
							recnd | 
							   | 
						
						
							| 19 | 
							
								18
							 | 
							3ad2ant1 | 
							   | 
						
						
							| 20 | 
							
								
							 | 
							simp11r | 
							   | 
						
						
							| 21 | 
							
								7 13 16 19 20
							 | 
							lineq | 
							   | 
						
						
							| 22 | 
							
								21
							 | 
							anbi2d | 
							   | 
						
						
							| 23 | 
							
								
							 | 
							oveq1 | 
							   | 
						
						
							| 24 | 
							
								23
							 | 
							oveq1d | 
							   | 
						
						
							| 25 | 
							
								24
							 | 
							eqeq1d | 
							   | 
						
						
							| 26 | 
							
								25
							 | 
							biimpac | 
							   | 
						
						
							| 27 | 
							
								
							 | 
							simpl | 
							   | 
						
						
							| 28 | 
							
								27
							 | 
							3ad2ant1 | 
							   | 
						
						
							| 29 | 
							
								28
							 | 
							resqcld | 
							   | 
						
						
							| 30 | 
							
								29
							 | 
							recnd | 
							   | 
						
						
							| 31 | 
							
								30
							 | 
							3ad2ant1 | 
							   | 
						
						
							| 32 | 
							
								17
							 | 
							3ad2ant1 | 
							   | 
						
						
							| 33 | 
							
								32 12
							 | 
							resubcld | 
							   | 
						
						
							| 34 | 
							
								28
							 | 
							3ad2ant1 | 
							   | 
						
						
							| 35 | 
							
								33 34 20
							 | 
							redivcld | 
							   | 
						
						
							| 36 | 
							
								35
							 | 
							resqcld | 
							   | 
						
						
							| 37 | 
							
								36
							 | 
							recnd | 
							   | 
						
						
							| 38 | 
							
								10
							 | 
							resqcld | 
							   | 
						
						
							| 39 | 
							
								38
							 | 
							recnd | 
							   | 
						
						
							| 40 | 
							
								39
							 | 
							3ad2ant3 | 
							   | 
						
						
							| 41 | 
							
								31 37 40
							 | 
							adddid | 
							   | 
						
						
							| 42 | 
							
								33
							 | 
							recnd | 
							   | 
						
						
							| 43 | 
							
								27
							 | 
							recnd | 
							   | 
						
						
							| 44 | 
							
								43
							 | 
							3ad2ant1 | 
							   | 
						
						
							| 45 | 
							
								44
							 | 
							3ad2ant1 | 
							   | 
						
						
							| 46 | 
							
								42 45 20
							 | 
							sqdivd | 
							   | 
						
						
							| 47 | 
							
								46
							 | 
							oveq2d | 
							   | 
						
						
							| 48 | 
							
								33
							 | 
							resqcld | 
							   | 
						
						
							| 49 | 
							
								48
							 | 
							recnd | 
							   | 
						
						
							| 50 | 
							
								27
							 | 
							resqcld | 
							   | 
						
						
							| 51 | 
							
								50
							 | 
							recnd | 
							   | 
						
						
							| 52 | 
							
								51
							 | 
							3ad2ant1 | 
							   | 
						
						
							| 53 | 
							
								52
							 | 
							3ad2ant1 | 
							   | 
						
						
							| 54 | 
							
								
							 | 
							sqne0 | 
							   | 
						
						
							| 55 | 
							
								4 54
							 | 
							syl | 
							   | 
						
						
							| 56 | 
							
								55
							 | 
							biimpar | 
							   | 
						
						
							| 57 | 
							
								56
							 | 
							3ad2ant1 | 
							   | 
						
						
							| 58 | 
							
								57
							 | 
							3ad2ant1 | 
							   | 
						
						
							| 59 | 
							
								49 53 58
							 | 
							divcan2d | 
							   | 
						
						
							| 60 | 
							
								47 59
							 | 
							eqtrd | 
							   | 
						
						
							| 61 | 
							
								60
							 | 
							oveq1d | 
							   | 
						
						
							| 62 | 
							
								41 61
							 | 
							eqtrd | 
							   | 
						
						
							| 63 | 
							
								62
							 | 
							eqeq1d | 
							   | 
						
						
							| 64 | 
							
								11
							 | 
							resqcld | 
							   | 
						
						
							| 65 | 
							
								36 64
							 | 
							readdcld | 
							   | 
						
						
							| 66 | 
							
								65
							 | 
							recnd | 
							   | 
						
						
							| 67 | 
							
								
							 | 
							rpre | 
							   | 
						
						
							| 68 | 
							
								67
							 | 
							resqcld | 
							   | 
						
						
							| 69 | 
							
								68
							 | 
							recnd | 
							   | 
						
						
							| 70 | 
							
								69
							 | 
							3ad2ant2 | 
							   | 
						
						
							| 71 | 
							
								50
							 | 
							3ad2ant1 | 
							   | 
						
						
							| 72 | 
							
								71
							 | 
							3ad2ant1 | 
							   | 
						
						
							| 73 | 
							
								72
							 | 
							recnd | 
							   | 
						
						
							| 74 | 
							
								66 70 73 58
							 | 
							mulcand | 
							   | 
						
						
							| 75 | 
							
								
							 | 
							binom2sub | 
							   | 
						
						
							| 76 | 
							
								19 13 75
							 | 
							syl2anc | 
							   | 
						
						
							| 77 | 
							
								76
							 | 
							oveq1d | 
							   | 
						
						
							| 78 | 
							
								77
							 | 
							eqeq1d | 
							   | 
						
						
							| 79 | 
							
								17
							 | 
							resqcld | 
							   | 
						
						
							| 80 | 
							
								79
							 | 
							3ad2ant1 | 
							   | 
						
						
							| 81 | 
							
								
							 | 
							2re | 
							   | 
						
						
							| 82 | 
							
								81
							 | 
							a1i | 
							   | 
						
						
							| 83 | 
							
								32 12
							 | 
							remulcld | 
							   | 
						
						
							| 84 | 
							
								82 83
							 | 
							remulcld | 
							   | 
						
						
							| 85 | 
							
								80 84
							 | 
							resubcld | 
							   | 
						
						
							| 86 | 
							
								12
							 | 
							resqcld | 
							   | 
						
						
							| 87 | 
							
								85 86
							 | 
							readdcld | 
							   | 
						
						
							| 88 | 
							
								72 64
							 | 
							remulcld | 
							   | 
						
						
							| 89 | 
							
								87 88
							 | 
							readdcld | 
							   | 
						
						
							| 90 | 
							
								89
							 | 
							recnd | 
							   | 
						
						
							| 91 | 
							
								68
							 | 
							3ad2ant2 | 
							   | 
						
						
							| 92 | 
							
								72 91
							 | 
							remulcld | 
							   | 
						
						
							| 93 | 
							
								92
							 | 
							recnd | 
							   | 
						
						
							| 94 | 
							
								90 93 93
							 | 
							subcan2ad | 
							   | 
						
						
							| 95 | 
							
								85
							 | 
							recnd | 
							   | 
						
						
							| 96 | 
							
								86
							 | 
							recnd | 
							   | 
						
						
							| 97 | 
							
								88
							 | 
							recnd | 
							   | 
						
						
							| 98 | 
							
								95 96 97
							 | 
							addassd | 
							   | 
						
						
							| 99 | 
							
								32
							 | 
							recnd | 
							   | 
						
						
							| 100 | 
							
								8
							 | 
							recnd | 
							   | 
						
						
							| 101 | 
							
								100
							 | 
							3ad2ant1 | 
							   | 
						
						
							| 102 | 
							
								11
							 | 
							recnd | 
							   | 
						
						
							| 103 | 
							
								99 101 102
							 | 
							mulassd | 
							   | 
						
						
							| 104 | 
							
								18 100
							 | 
							mulcomd | 
							   | 
						
						
							| 105 | 
							
								104
							 | 
							3ad2ant1 | 
							   | 
						
						
							| 106 | 
							
								105
							 | 
							oveq1d | 
							   | 
						
						
							| 107 | 
							
								103 106
							 | 
							eqtr3d | 
							   | 
						
						
							| 108 | 
							
								107
							 | 
							oveq2d | 
							   | 
						
						
							| 109 | 
							
								82
							 | 
							recnd | 
							   | 
						
						
							| 110 | 
							
								8 17
							 | 
							remulcld | 
							   | 
						
						
							| 111 | 
							
								110
							 | 
							3ad2ant1 | 
							   | 
						
						
							| 112 | 
							
								111
							 | 
							recnd | 
							   | 
						
						
							| 113 | 
							
								109 112 102
							 | 
							mulassd | 
							   | 
						
						
							| 114 | 
							
								108 113
							 | 
							eqtr4d | 
							   | 
						
						
							| 115 | 
							
								114
							 | 
							oveq2d | 
							   | 
						
						
							| 116 | 
							
								101 102
							 | 
							sqmuld | 
							   | 
						
						
							| 117 | 
							
								116
							 | 
							oveq1d | 
							   | 
						
						
							| 118 | 
							
								9
							 | 
							resqcld | 
							   | 
						
						
							| 119 | 
							
								118
							 | 
							recnd | 
							   | 
						
						
							| 120 | 
							
								34
							 | 
							resqcld | 
							   | 
						
						
							| 121 | 
							
								120
							 | 
							recnd | 
							   | 
						
						
							| 122 | 
							
								64
							 | 
							recnd | 
							   | 
						
						
							| 123 | 
							
								119 121 122
							 | 
							adddird | 
							   | 
						
						
							| 124 | 
							
								117 123
							 | 
							eqtr4d | 
							   | 
						
						
							| 125 | 
							
								115 124
							 | 
							oveq12d | 
							   | 
						
						
							| 126 | 
							
								98 125
							 | 
							eqtrd | 
							   | 
						
						
							| 127 | 
							
								126
							 | 
							oveq1d | 
							   | 
						
						
							| 128 | 
							
								80
							 | 
							recnd | 
							   | 
						
						
							| 129 | 
							
								8
							 | 
							resqcld | 
							   | 
						
						
							| 130 | 
							
								129 71
							 | 
							readdcld | 
							   | 
						
						
							| 131 | 
							
								130
							 | 
							3ad2ant1 | 
							   | 
						
						
							| 132 | 
							
								131 64
							 | 
							remulcld | 
							   | 
						
						
							| 133 | 
							
								9 32
							 | 
							remulcld | 
							   | 
						
						
							| 134 | 
							
								82 133
							 | 
							remulcld | 
							   | 
						
						
							| 135 | 
							
								134 11
							 | 
							remulcld | 
							   | 
						
						
							| 136 | 
							
								132 135
							 | 
							resubcld | 
							   | 
						
						
							| 137 | 
							
								136
							 | 
							recnd | 
							   | 
						
						
							| 138 | 
							
								135
							 | 
							recnd | 
							   | 
						
						
							| 139 | 
							
								132
							 | 
							recnd | 
							   | 
						
						
							| 140 | 
							
								128 138 139
							 | 
							subadd23d | 
							   | 
						
						
							| 141 | 
							
								128 137 140
							 | 
							comraddd | 
							   | 
						
						
							| 142 | 
							
								141
							 | 
							oveq1d | 
							   | 
						
						
							| 143 | 
							
								137 128 93
							 | 
							addsubassd | 
							   | 
						
						
							| 144 | 
							
								139 138
							 | 
							negsubd | 
							   | 
						
						
							| 145 | 
							
								144
							 | 
							eqcomd | 
							   | 
						
						
							| 146 | 
							
								145
							 | 
							oveq1d | 
							   | 
						
						
							| 147 | 
							
								135
							 | 
							renegcld | 
							   | 
						
						
							| 148 | 
							
								147
							 | 
							recnd | 
							   | 
						
						
							| 149 | 
							
								80 92
							 | 
							resubcld | 
							   | 
						
						
							| 150 | 
							
								149
							 | 
							recnd | 
							   | 
						
						
							| 151 | 
							
								139 148 150
							 | 
							addassd | 
							   | 
						
						
							| 152 | 
							
								143 146 151
							 | 
							3eqtrd | 
							   | 
						
						
							| 153 | 
							
								127 142 152
							 | 
							3eqtrd | 
							   | 
						
						
							| 154 | 
							
								93
							 | 
							subidd | 
							   | 
						
						
							| 155 | 
							
								153 154
							 | 
							eqeq12d | 
							   | 
						
						
							| 156 | 
							
								78 94 155
							 | 
							3bitr2d | 
							   | 
						
						
							| 157 | 
							
								63 74 156
							 | 
							3bitr3d | 
							   | 
						
						
							| 158 | 
							
								1
							 | 
							a1i | 
							   | 
						
						
							| 159 | 
							
								121 119 158
							 | 
							comraddd | 
							   | 
						
						
							| 160 | 
							
								159
							 | 
							oveq1d | 
							   | 
						
						
							| 161 | 
							
								2
							 | 
							a1i | 
							   | 
						
						
							| 162 | 
							
								161
							 | 
							oveq1d | 
							   | 
						
						
							| 163 | 
							
								134
							 | 
							recnd | 
							   | 
						
						
							| 164 | 
							
								163 102
							 | 
							mulneg1d | 
							   | 
						
						
							| 165 | 
							
								162 164
							 | 
							eqtrd | 
							   | 
						
						
							| 166 | 
							
								3
							 | 
							a1i | 
							   | 
						
						
							| 167 | 
							
								165 166
							 | 
							oveq12d | 
							   | 
						
						
							| 168 | 
							
								160 167
							 | 
							oveq12d | 
							   | 
						
						
							| 169 | 
							
								168
							 | 
							eqcomd | 
							   | 
						
						
							| 170 | 
							
								169
							 | 
							eqeq1d | 
							   | 
						
						
							| 171 | 
							
								170
							 | 
							biimpd | 
							   | 
						
						
							| 172 | 
							
								157 171
							 | 
							sylbid | 
							   | 
						
						
							| 173 | 
							
								26 172
							 | 
							syl5 | 
							   | 
						
						
							| 174 | 
							
								22 173
							 | 
							sylbid | 
							   |