File: CONJUNCT1.doc

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\DOC CONJUNCT1

\TYPE {CONJUNCT1 : thm -> thm}

\SYNOPSIS
Extracts left conjunct of theorem.

\KEYWORDS
rule, conjunction.

\DESCRIBE
{
    A |- t1 /\ t2
   ---------------  CONJUNCT1
       A |- t1
}
\FAILURE
Fails unless the input theorem is a conjunction.

\EXAMPLE
{
  # CONJUNCT1(ASSUME `p /\ q`);;
  val it : thm = p /\ q |- p
}

\SEEALSO
CONJ_PAIR, CONJUNCT2, CONJ, CONJUNCTS.

\ENDDOC