File: ASSUME.doc

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\DOC ASSUME

\TYPE {ASSUME : (term -> thm)}

\SYNOPSIS
Introduces an assumption.

\KEYWORDS
rule, assumption.

\DESCRIBE
When applied to a term {t}, which must have type {bool}, the inference rule
{ASSUME} returns the theorem {t |- t}.
{
   --------  ASSUME "t"
    t |- t
}
\FAILURE
Fails unless the term {t} has type {bool}.

\COMMENTS
The type of {ASSUME} is shown by the system as {conv}.

\SEEALSO
ADD_ASSUM, REFL.

\ENDDOC