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Input phrases

An input phrase is one of the following:
  1. A deduction $D$. The syntax and semantics of deductions will be covered in Section 1.9 and Section 1.10, respectively. (Terminological note: in this document the terms ``deduction'' and ``proof'' will be used interchangeably.)
  2. A signature declaration. These are covered in Section 1.6.
  3. An assertion. This is simply a string of the form

    \begin{displaymath}\mbox{\tt assert } F_1, \ldots, F_n\end{displaymath}

    where each $F_i$ is a formula (formulas are discussed in Section 1.8).


2004-08-06