SSH Flashcards
What is an assertion?
A declarative sentence that is intended to make a claim of some sort. Sometimes these are called statements or propositions
What is a premise?
It is a statement that is offered in support of a conclusion
What is a conclusion?
It is a statement that is held to be supported by a premise or premises.
What are the common impediments to critical thinking?
Category 1: Hindrances that arise because of how we think.
Category 2: Hindrances that occur because of what we think.
Category 1 Impediments to Critical Thinking
(a) Self-Interested thinking:
Self-Interested thinking: Accepting a claim solely on the
grounds that it advances, or coincides with, our interests.
Category 1 Impediments to Critical Thinking
b) Group Thinking:
Peer pressure
Fallacy: an argument form that is both common and defective.
* Fallacy of appeal to popularity/appeal to the masses
* Fallacy of appeal to common practice
* Fallacy of appeal to tradition
* Genetic fallacy
Category 2 Impediments to Critical Thinking
What are the 3 key ingredients in propositional knowledge?
Propositional knowledge (knowledge-that) “Thomas knows that Canada is a parliamentary democracy.”
In this course, our central concern is with Propositional Knowledge
3 key ingredients in propositional knowledge:
1. Belief – To know that p you must believe p.
2. Truth – To know that p, your belief that p needs to be true.
3. Justification – To know that p, your true belief that p must to justified
What is realtivism?
The view that propositions have a truth- value, but that what
this is depends upon (i.e. is relative to) some person or social group.
Subjective Relativism (The Subjectivist Fallacy)
The view that the truth-value of a proposition depends solely upon what
someone believes
Social Relativism
The view that the truth-value of a proposition depends solely upon (is relative to)
societies or groups
Subjectivist fallacy
Accepting the notion of
subjective relativism or using
it to try to support a claim.
Deductive argument
An argument intended to provide logically conclusive support for its conclusion.
Inductive argument
An argument in which the premises are intended to provide probable, not conclusive,
support for its conclusion
When does a deductive argument valid
It succeeds when its provides such decisive logical support and invalid when it fails to provide it.
what makes a inductive argument strong?
An inductive argument that succeeds in providing probable—but not conclusive—
logical support for its conclusion is said to be strong.
* An inductive argument that fails to provide such support is said to be weak
why are inductive arguments not truth-perserving?
the truth of the conclusion, can not be guaranteed by the truth of the premises.
Deductive validity
An argument is deductively valid if and only if it is not
possible for the premises to be true and the conclusion
false
i.e., if all the premises were true, the conclusion would
have to be true too.
An argument is deductively invalid if and only if it is not
deductively valid.
Deductive soundness
An argument is said to be deductively sound if and only
if (1) it is deductively valid and (2)all its premises are
true
Inductive strength
An argument is inductively strong if and only if the
conclusion is probably true, assuming the premises are true.
An argument is inductively weak if and only if it is not
inductively strong
Not all deductively valid arguments have true premises and
true conclusions.
* In fact, a valid argument may have any of the following
combinations
- True premises and true conclusion
- False premises and true conclusion
- False premises and false conclusion