The error theory and non-factualism are two forms of irrealism formulated in semantic way.

错误和非事实语义方式表述的两种不同形态的非实在。

In order to maintain thoroughly hsi philosophical standpoint of Anti-realism, he rejected two-valued semantics and took Intuitionist logic as the basis of his metaphysics.

为了彻底坚持其反实在的哲学立场，达斥二值原则，把直觉主义逻辑作为其形而上学的基础。