Week 4 Flashcards
what is this (If –A- then -B–) If A is true then B is true
conditional statements or hypotheticals
antecedent in the hypotheticals (is it A or B)
(If –A- then -B–)
A = antecedent
consequent in the hypotheticals (is it A or B)
(If –A- then -B–)
B = consequent
Hypothetical Syllogisms: Modus ponens
have valid form since the condition of “if” is met
If A is true B is true
A IS true
so, B is true
Affirming Antecedent
Error of Modus Ponens
If A is true B is true
B Is true
so, A is true
^This is wrong, We are sure if A is true B is true, BUT just cuz B is true doesnt mean A is true
Hypothetical Syllogisms: Modus Tollens
If A then B
not B
so not A
Denying the consequent
Logical Error of Modus Tollens
If A then B
not A
so not B
^wrong, it should be the consequent that is being denied
Hypothetical Syllogisms: Chain argument
If A, then B.
If B, then C.
Therefore, if A, then C.
Argument by Elimination (disjunctive argument)
Either A or B.
Not A.
Therefore, B.
false dichotomy
presenting only 2 options as if thats the only options
learn about standardized form / categorized
kk