TOPIC 2 Flashcards
Critical thinking
ability to analyze and break down an issue in order to make a decision or find a solution
starts with logic…
unnatural act of knowing which facts you’re putting together to reach your conclusions
Critical thinking and Argumentation
- critical thinking is a strong skill for argumentation
- to arrive at a conclusion, critical thinking requires the capacity to assess the situation, scrutinize the evidence and consider multiple point of views
Argumentation
- communication process in which someone tries to convince another to accept their opinion by presenting reasons and evidence
- the art of convincing and persuading a person to adopt a specific behaviour
What does argumentation happen through?
Reason (showing facts, proving) - convincing
Emotion (non-verbal communication) - persuading
Argument
set of statements arranged in such a way that the conclusion is demonstrated by the premises of the argument
A group of claims is arranged as an argument when:
1- one of the claims (the “conclusion”) is treated as controversial (a claim to be defended)
2- one of the other claim(s) (the “premises”) are put forth as claims meant to support the conclusion
Form of an argument (common conditional)
- If P then Q (conditional sentence)
- P (affirms the antecedent of premise 1)
THEREFORE - Q (is the consequent of premise 1)
When is an argument valid
- When all the premises are true
- When the conclusion (consequent) follows from the premises (antecedent)
Syllogism
- model of reasoning in which a conclusion is drawn from two premises
Types of syllogisms
Conditional: syllogism that neither affirms nor denies the premises
Disjunctive: syllogism formed by a premise that presents itself as an alternative
Dilemma: argumentative syllogism where two possible hypotheses are presented, none of which are desirable
Conditional syllogism
Modus Ponens:
- If p then q, P, therefore Q
Modus Tollens:
- If p then q, not q, therefore not p
Disjunctive syllogism
Modus Ponendo Tollens:
- Either p or q, P, therefore not Q
Modus Tollendo Ponens:
- Either p or q, not p, therefore q
Dilemma
- problematic situation composed of two options that are contradictory to each other
- none of the options is satisfactory
- Or p, or q, if p, then r, if q, then r, in one way or another, r
Fallacies
an argument is fallacious when the reasons given, appear to support the conclusion but, in reality, do not
Affirming the consequent
If P then q, q, therefore P