Conditional Reasoning- sufficient and necessary
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| sufficient condition | show 🗑
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| show | an event or circumstance whose occurrence is required in order for a sufficient condition to occur
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| if there is a sufficient condition... | show 🗑
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| if there is a necessary condition... | show 🗑
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| logical feature #1 | show 🗑
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| logical feature #2 | show 🗑
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| show | relationship doesn't have to reflect reality
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| Original to contra-positive, A -> B | show 🗑
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| Original to contra-positive, C -> not D | show 🗑
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| contra-positive | show 🗑
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| if | show 🗑
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| when | show 🗑
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| whenever | show 🗑
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| every | show 🗑
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| all | show 🗑
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| any | show 🗑
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| show | sufficient indicator
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| in order to | show 🗑
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| show | necessary indicator
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| only | show 🗑
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| only if | show 🗑
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| must | show 🗑
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| show | necessary indicator
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| show | necessary indicator
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| except | show 🗑
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| until | show 🗑
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| without | show 🗑
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| show | whatever is modified by "unless, expect, until, without" becomes necessary, remaining term is negated and sufficient
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| "Unless they study, they won't get an A+." | show 🗑
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| "no, none" | show 🗑
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| show | All robots cannot think.
"If robot, then can't think."
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| show | only modifies way
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| show | sufficient = achieve success
necessary = work hard
"To achieve success, the only way is to work hard."
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| show | at least one of the two, possible both
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| show | contra-positive replaces "and" with "or" and vice versa
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| "To graduate from college you must be both smart and resourceful." | show 🗑
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| show | each term is both sufficient and necessary for the other
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| show | two terms cannot occur together
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Created by:
mrshelley
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