有人話:A係人，B係人，但A不等如B :公式點寫?

Ha&Hb&(a=\=b)

根本沒有公式 因為三者皆是statement而矣。 正如: X = 整數 Y = 整數 “X”當然有可能不等於“Y”啦!

jacky 公式是 Ha&Hb&(a=\=b).

OK I am hurry this morning. Let me ask again: Someone say Logic is wrong which he said: A is human B is human so A= human and B=human and therefore A=B but actually A<>B so he say "logic" is wrong but I say A & B are subset of Human What's the equation of A is subset of Human B is subset of Human BTW where can I learn more on this kind of Logic equation ?

很簡單 不應用等號

-[Ha ^ Hb --> (a=b)]

識呢D公式 是否比唔識公式可以 分析得更有效呢? 讀哲學是否必需學呢D公式呢?