Term
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Definition
Anything not inconceivable
≠ a round square
= flying horses |
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Term
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Definition
| Essential nature of a thing or phenomenon. |
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Term
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Definition
No logical contradiction
E.G.
Butch is married to Barb
Barb is married to Butch |
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Term
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Definition
51% likely
Specific info. Broad generalization
Conclusion may be accurate.
All cats I have observed purr
∴ all cats purr |
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Term
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Definition
If/Then
3 lined argument
If rain the no picnic
no picnic then no picnic basket
∴ If rain the no picnic basket |
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Term
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Definition
Most people believe X is true
∴ X is true
E.G.
Angels, God |
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Term
Appeal to Ignorance
=
Logical Fallicy |
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Definition
No one has proven otherwise
There is no evidence against p.
∴ p.
There is no evidence for p.
∴ not-p. |
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Term
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Definition
Linking event to one that came before it.
Shooter had donut for breakfast
∴ donut cause shooter to go nuts. |
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Term
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Definition
If P, then Q. (premise -- material implication)
If not Q , then not P. (derived by transposition)
Not Q . (premise)
Therefore, not P.
if raining
then clouds
no clouds
∴ not raining |
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Term
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Definition
If P implies Q and P is true, then Q is true.
E.G.
If it is raining, I will meet you
It is raining.
∴ I will meet you |
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Term
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Definition
Either/or
E.G.
Either the door is open or it's closed
the door is not open
∴ the door is closed |
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Term
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Definition
100% likely
E.G.
If a=b and b=c
then a=c |
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Term
| Enumerative Inductive Argument |
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Definition
Since all A's experienced so far are B's
Then all A's are B's
Since the tooth fairy, and the easter bunny don't exist then neither does santa |
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Term
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Definition
Used in (not as) an argument
X and Y are similar in 1, 2, & 3
X has property A
∴ Y has property A
E.G. Movie has similar plot to A, So Probably Also funny |
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Term
Circular Reasoning
=
Begging the question |
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Definition
Paradoxal Argument
X is true because of Y
Y is true because of X
E.G.
The Bible is the word of God because God tells us so in the Bible. |
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Term
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Definition
Not necessary
1. or
2. or
3. or...
Rain sufficient for ground being wet
OR snow
OR sprinkler
OR ... |
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Term
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Definition
Fact required by subject
E.G.
To get an A in class, must take test
doesn't take test, Can't get A
∴ If got A then took test |
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Term
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Definition
Disjunction Either/Or
A or B, no C
Either you support the war
or you hate USA |
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