| 《周髀算經》does not even need to |
| 送交者: 定理 2009月04月11日11:45:01 於 [教育學術] 發送悄悄話 |
| 回 答: i know. but seems that 由 要飯花子 於 2009-04-11 11:00:35 |
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define an arbitrary triangle, let alone defining a binary relation "congruence" among arbitrary triangles.
whatever assumption/definition is used in 《周髀算經》is also used by euclid, but the converse is not true. --that is all i am saying. |
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