Full Idea
There are two problems with Kant's characterisation of analytic truths (as having 'the predicate contained within the subject'): what exactly does it mean to say that bachelor "contains" unmarried man?, and it is limited to subject-predicate sentences.
Gist of Idea
How can bachelor 'contain' unmarried man? Are all analytic truths in subject-predicate form?
Source
comment on Immanuel Kant (Critique of Pure Reason [1781]) by Alexander Miller - Philosophy of Language 4.2
Book Reference
Miller,Alexander: 'Philosophy of Language' [UCL Press 1998], p.115
A Reaction
He picks these objections up from Quine. I always have reservations about Quine's supposed demolition of analytic truths, but there is no denying that these are two excellent problems which need addressing.