unit 2 Flashcards
deductive
reason alone, mathematics,and formal logic,
- uses reason alone to get from a premise to a conclusion. conclusion follows with necessity
Inductive
Uses sense data collection (the five senses) (weak or strong, not valid. conclusion follows with a degree of probability.
analytic proposition
the idea of the predicate is contained within the idea of the subject.
synthetic proposition
The predicate is not contained within the subject. New info is added.
A statement
All s is p
E Statement
No s is p
I statement
Some s is p
o statement
Some s is not p
contradiction
no same truth value. if one is true the other must be false
Contrariety
cant be true at the same time, but can be false at the same time
subcontrariety
cant be false at the same time, but can be true at the same time
subalternation
Ascend with falcity
Square of opposition
A contriety E
subalt contradic subalt
I subcontriety O
you shade where there is
none
a is false
o=t