Complex sentence: The Sadrian theory has two levels: the first claims that a proposition is true if it corresponds to things in reality; the second part is that a proposition can be true if it conforms with the actual thing itself.
Split into simpler sentences: The Sadrian theory has two levels, the first claims that a proposition is true if it corresponds to things in reality. The second part is that a proposition can be true if it conforms with the actual thing itself.