FSC239Y5 Lecture : FSC239 - Feb 8 2011
Document Summary
A circumstance in whose absence an event cannot occur. Example: oxygen is necessary for fire, being human is necessary to be a citizen in usa. Showing up for an exam day is necessary to get well on an exam. A circumstance in whose presence the event must occur. Something that can cause an effect but isn"t necessary for it. A necessary and sufficient condition is a circumstance in whose absence the event will not occur, and in whose presence the event must occur. No, because we can identify countries that don"t have a parliamentary system. Just because you"re wealthy does not mean you"re a democracy. There can only be one cause of the outcome: all the possible causes must be identified, we have to observe all the possible instances. One way to represent an argument is the form of a categorical syllogism that consists of a major premise, a minor premise and a conclusion.
