(M) Lesson 5: Logical Opposition Flashcards
Is the mental reasoning wherein the mind passes directly from one premise to the conclusion without mediums
Immediate Inferences
It develops facility of recognizing quality and quantity in propositions
Immediate Inferences
It helps in understanding the relationships of propositions with one another regarding truth and falsity
Immediate Inferences
There is no need to look for an intervening proposition
Immediate Inferences
Relation that exists between 2 standard-form categorical propositions that differ in quantity, quality, or other respects
Logical Opposition
Traditional Square of Opposition
The truth value of the proposition (the premise) is neither true or false.
Contingent
Traditional Square of Opposition
Rely on the given to figure out its opposite proposition
Contingent
Traditional Square of Opposition
Cannot be both true but can both be false
Contrariety (Universal)
Traditional Square of Opposition
If one is true, then the other should be false but not vice versa.
Contrariety (Universal)
Traditional Square of Opposition
Cannot be both false but can be both true
Sub-contrariety (Particular)
Traditional Square of Opposition
If one is false, then the other must be true but not vice versa
Sub-contrariety (Particular)
Traditional Square of Opposition
Direct opposite of what is being asked
Contradiction
Traditional Square of Opposition
Cannot be both true and both false at the same time
Contradiction
Traditional Square of Opposition
If one is true, the other is false and vice versa.
Contradiction
Traditional Square of Opposition
Don’t have unknown/questionable truth values in oppositions
Contradiction
