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Because I've never studied philosophy of science, I haven't read Cavaillès either.
Literal
Science-philosophy [object-を] study did-not [because-ので] Cavaillès [about-についても] read did-not.
A humble confession about a gap in one's reading. The frame ~たことがない ('have never done X') is the negative of the experiential ~たことがある. Here attached to 勉強した: 'have never studied.' ~についても ('also about X,' 'about X too') is the ~について topic marker combined with も ('also'), topicalizing Cavaillès while adding him to some implied broader list. Jean Cavaillès was a French philosopher of mathematics and the foundations of science; the mention suggests a reading context that's already touched on other philosophers, and Cavaillès is next on the unread list.