那种说法根本不存在．翻译

That kind of statment does not exist.
关键是说法 statment
More exaples:
两种说法相互抵触。
The two statements contradict each other.
这两种说法不相符.
The two statements don't match up.
从他的说法中推出这种结论恰当吗？
Is that a fair inference to draw from his statement?