Logic Flashcards
The law of identity
one of the three laws of thought; “each thing is the same with itself and different from another”
The law of non-contradiction
one of the three laws of thought; contradictory statements cannot both be true in the same sense at the same time, e.g. the two propositions “A is B” and “A is not B” are mutually exclusive
The law of the excluded middle
one of the three laws of thought; for any proposition, either that proposition is true, or its negation is true
According to rationalism, what is a more important source of knowledge?
reason
reason is a more important source of knowledge than experience
deductive reasoning
general -> particular
inductive reasoning
particular -> general
What are the main causes of bad reasoning?
ignorance, laziness, pride, prejudice
A Statement
universal affirmative
E Statement
universal negative
I Statement
particular affirmative
O Statement
particular negative