3 Laws - Robotics
A robot may not injure a human being or, through inaction, allow a human being to come to harm.
A robot must obey orders given it by human beings except where such orders would conflict with the First Law.
A robot must obey orders given it by human beings except where such orders would conflict with the First Law.
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#3 Should be:
A robot must protect its own existence as long as such protection does not conflict with the First or Second Law.