And treatment objects and classes the purely functional setting system

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Structure

Figure P-1: Chapter Dependencies

The treatment of each language feature discussed in the book follows a common pattern. Motivating examples are first; then formal definitions; then proofs of basic properties such as type safety; then (usually in a separate chapter) a deeper investigation of metatheory, leading to typechecking algorithms and their proofs of soundness, completeness, and termination; and finally (again in a separate chapter) the concrete realization of these algorithms as an OCaml (Objective Caml) program.