File: lhs.doc

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\DOC lhs

\TYPE {lhs : term -> term}

\SYNOPSIS
Returns the left-hand side of an equation.

\DESCRIBE
{lhs `t1 = t2`} returns {`t1`}.

\FAILURE
Fails with {lhs} if the term is not an equation.

\EXAMPLE
{
  # lhs `2 + 2 = 4`;;
  val it : term = `2 + 2`
}

\SEEALSO
dest_eq, lhand, rand, rhs.

\ENDDOC