math
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5 defs 66 6 defs 62 3 defs 102 6 defs 92 5 defs 141 6 defs 136 5 defs 88 7 defs 74 6 defs 132 8 defs 99 6 defs 128 3 defs 71 3 defs 145 5 defs 97 5 defs 104 5 defs 178 5 defs 136 5 defs 106 6 defs 92 3 defs 137 3 defs 42 5 defs 58 3 defs 140 3 defs 86 7 defs 157 7 defs 95 5 defs 60 3 defs 80 4 defs 127 6 defs 107