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+.\" Process this file with
+.\" groff -man -Tascii libcvc4.3
+.\"
+.TH LIBCVC4 3 "@MAN_DATE@" "CVC4 release @VERSION@" "CVC4 Library Interfaces"
+.SH NAME
+libcvc4 \- a library interface for the CVC4 theorem prover
+.SH SYNOPSIS
+
+A small program like:
+
+.RS
+.nf
+#include <iostream>
+#include "expr/expr_manager.h"
+#include "smt/smt_engine.h"
+
+using namespace CVC4;
+
+int main() {
+  ExprManager em;
+  SmtEngine smt(&em);
+  Expr onePlusTwo = em.mkExpr(kind::PLUS,
+                              em.mkConst(Rational(1)),
+                              em.mkConst(Rational(2)));
+  std::cout << Expr::setlanguage(language::output::LANG_CVC4)
+            << smt.getInfo("name")
+            << " says that 1 + 2 = "
+            << smt.simplify(onePlusTwo)
+            << std::endl;
+
+  return 0;
+}
+.fi
+.RE
+
+gives the output:
+
+.RS
+"cvc4" says that 1 + 2 = 3
+.RE
+
+.SH DESCRIPTION
+
+The main classes of interest in CVC4's API are
+.I ExprManager,
+.I SmtEngine,
+and a few related ones like
+.I Expr
+and
+.I Type.
+
+The
+.I ExprManager
+is used to build up expressions and types, and the
+.I SmtEngine
+is used primarily to make assertions, check satisfiability/validity, and extract models and proofs.
+
+The SmtEngine is also in charge of setting and getting information and options.
+.I SmtEngine::setOption()
+and
+.I SmtEngine::getOption()
+use the following option keys.
+
+.RS
+.TP 10
+.I "COMMON OPTIONS"
+${common_manpage_smt_documentation}
+
+${remaining_manpage_smt_documentation}
+.PD
+.RE
+
+.SH "SEE ALSO"
+.BR cvc4 (1),
+.BR libcvc4parser (3),
+.BR libcvc4compat (3)
+
+Additionally, the CVC4 wiki contains useful information about the
+design and internals of CVC4.  It is maintained at
+.BR http://goedel.cs.nyu.edu/wiki/ .