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    • Montgomery

    Montgomery-zero

    Neutral point of the Montgomery curve group.

    Signature
    (montgomery-zero) → point
    Returns
    point — Type (pointp point).

    This is the point at infinity.

    Definitions and Theorems

    Function: montgomery-zero

    (defun montgomery-zero nil
      (declare (xargs :guard t))
      (let ((acl2::__function__ 'montgomery-zero))
        (declare (ignorable acl2::__function__))
        (point-infinite)))

    Theorem: pointp-of-montgomery-zero

    (defthm pointp-of-montgomery-zero
      (b* ((point (montgomery-zero)))
        (pointp point))
      :rule-classes :rewrite)

    Theorem: point-on-montgomery-p-of-montgomery-zero

    (defthm point-on-montgomery-p-of-montgomery-zero
      (point-on-montgomery-p (montgomery-zero)
                             curve))