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    • Pseudo-lambda

    Pseudo-lambda->body

    Signature
    (pseudo-lambda->body x) → body
    Arguments
    x — Guard (pseudo-lambda-p x).
    Returns
    body — Type (pseudo-termp body).

    Definitions and Theorems

    Function: pseudo-lambda->body

    (defun pseudo-lambda->body (x)
      (declare (xargs :guard (pseudo-lambda-p x)))
      (let ((__function__ 'pseudo-lambda->body))
        (declare (ignorable __function__))
        (mbe :logic (pseudo-term-fix (caddr x))
             :exec (caddr x))))

    Theorem: pseudo-termp-of-pseudo-lambda->body

    (defthm pseudo-termp-of-pseudo-lambda->body
      (b* ((body (pseudo-lambda->body x)))
        (pseudo-termp body))
      :rule-classes :rewrite)

    Theorem: pseudo-lambda->body-of-pseudo-lambda-fix-x

    (defthm pseudo-lambda->body-of-pseudo-lambda-fix-x
      (equal (pseudo-lambda->body (pseudo-lambda-fix x))
             (pseudo-lambda->body x)))

    Theorem: pseudo-lambda->body-pseudo-lambda-equiv-congruence-on-x

    (defthm pseudo-lambda->body-pseudo-lambda-equiv-congruence-on-x
      (implies (pseudo-lambda-equiv x x-equiv)
               (equal (pseudo-lambda->body x)
                      (pseudo-lambda->body x-equiv)))
      :rule-classes :congruence)