Carnap tried to define causality from the Angle of semantics.
卡尔纳普试图从语义学角度来定义因果必然性。
2
These paragraphs reveal that Carnap, at least thinks of observation terms as corresponding to qualities that can be detected without the aid of instruments.
这些文字揭示了卡尔纳普起码认为观察术语是对不同过一起就能发现的特性的错误描述。
3
Many terms that refer primarily to what Carnap would class as "unobservable" are not theoretical terms; and at least some theoretical terms refer primarily to observables.