 Wittgenstein: A Critique reviews the Tractatus, the Blue and Brown books, Remarks on the Foundations of the Mathematics, and the Investigations. The format is to take key aphorisms from Wittgenstein, expound them at considerable length, and then launch objections, which pile up as in a Thomistic Summa, but absent the replies. For example, against the Tractatus, Findlay objects (1) “Ultimate simple objects” are not ontologically viable, whatever can be referred to must have an internal structure, and form part of a larger relational structure; (2) “The restriction of all domains to the actually existent” is to be rejected because it is always significant to suppose that this thing that exists, might have not existed; (3) the view that “all necessities are logical necessities” is wrong because two atomic propositions can be inconsistent; (4) the axiom of extensionality is false because there are significant and true modal propositions; (5) not “all logical necessities are tautological”, since , e.g., “p” and “not not p” differ in sense; ( 6) the picture theory of language is wrong because meanings are connected to objects by intentional mental acts, not by “mirroring” (W: 222).