回复 36# ranshinish 的贴子
see MW : 9 P% `1 \4 L, }1 L E
it also have meaning of "a piece of information presented as having objective reality".
' I, w$ |. x" g, V* z. `' M. {1 N! K; wThe first occurrence of "periodic table" in 北美 is concept.
- T/ @9 e, g' W6 z+ l6 Kwhile "information of periodic table" in other paragraph means fact.9 Z& b, o# }, e2 V2 T; H9 _9 h& J4 \
With this logic, 数学公式 is concept, while "information" of 数学公式 is fact.