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48 Cards in this Set

  • Front
  • Back

Deductive arguement

conclusion follows with certainty or necessity
Inductive arguement
the conclusion follows only probably
Valid
if it is impossible for the conclusion to be false if the premises are true (DEDUCTIVE)
Invalid
if it is possible for the conclusion to be false if the premises are true (DEDUCTIVE)
Sound
if it is valid and all of the premises needed to support the conclusion are true (DEDUCTIVE)
Unsound
is either invalid or has false premises (DEDUCTIVE)
Strong
the premises make the conclusion likely (INDUCTIVE)
Weak
the premises do not make the conclusion likely (INDUCTIVE)
Cogent
(INDUCTIVE) if a strong argument has true premises
Uncogent
weak argument, or a strong argument with false premises (INDUCTIVE)
Connotation
characteristics and attributes of all the members of the denoted class
Denotation
gives individual members of the denoted class
Stipulative definition
assigns a new meaning to a word
Lexical definition
the reporting of the different, distinct meanings a word already has in a language, such as would be given by a dictionary definition
Precising definition

aims to reduce vagueness

Theoretical definition
assigns a meaning to a word by suggesting a theory that gives a certain characterization to the entities that the term denotes
Persuasive definition
this aims to foster approval or disapproval of the Definiendum in the audience.
Demonstrative definition
these denote the extension of a term by pointing to the members of the class
Enumerative definition
these define a term by naming individual members of the denoted class.
Defintion by subclass
these define a term by naming subclasses of the denoted class
Synonymous definition
gives a single word that connotes the same attributes as the Definiendum.
Etymological definition
gives the meaning of the term by disclosing the word's ancestry in both its own language and other languages
Operational definition
gives meaning to a term based on the experimental procedures, which determine whether the word applies to a certain thing
Definition by genus and difference (species)
assigns meaning by identifying a genus to which the term belongs, and the difference w/in the genus, which marks off the definiendum from other members of the genus.
Formal Fallacy
if there is something wrong with the form (DEDUCTIVE FALLACY'S ONLY)
Informal Fallacy
(Inductive fallacy's can ONLY be informal) If the form is not problematic, the fallacy is informal
Fallacy: Appeal To Force
the speaker gains the assent of the audience by explicit or implicit threats.
Fallacy: Appeal To Pity
the speaker gains the assent of the audience by evoking pity.
Fallacy: Appeal To The People
appealing to the audience's desire to be accepted as a member of the group.
Fallacy: Argument Against The Person
argumentum ad Homonym: Alleged, Abusive, Circumstantial, Quoque
Fallacy: Straw Man
misrepresents the opponents position, giving it a false appearance of weakness
Fallacy: Accident
applying a general rule to a case it was not meant to cover
Fallacy: Missing The Point
draws a conclusion that is related (but different) to one that might be legitimately derived from the given premises.
Fallacy: Red Herring
change the subject to another relevant subject that doesn't support the conclusion given.
Fallacy Of Weak Induction: appeal to unqualified authority
Authority lacks credibility, is untrustworthy, has a powerful motive to lie regarding the topic, lack expertise in the area they are talking about, might have a bias that affects his/her judgment.
Fallacy Of Weak Induction: appeal to ignorance
if the premises of an argument show only that there is no evidence, or that we know nothing about a certain subject, and the conclusion asserts something definite about that subject, the subject fails.
Fallacy Of Weak Induction: hasty generalization

(drawing an inductive conclusion about a whole based on knowledge of some of its parts) is not necessarily fallacious, but if it is done hastily, by taking too small of a sample otherwise not representative of the whole, it can be a fallacy.

Fallacy Of Weak Induction: false cause
depends on the presence of a dubious causal connection --> Mistaking the succession in time for causality, mistaking the effect for the cause, reading causality into mere coincidence, oversimplifying the cause, or misunderstanding probability (gamblers fallacy)
Fallacy Of Weak Induction: slippery slope
similar to false cause, this fallacy falsely assumes a series of causal relationships (producing a chain reaction), which is not necessary.
Fallacy Of Weak Induction: weak analogy
comparison between two things, which identify some similarity, and argue on this basis for further similarities.
Begging the question
presupposing your conclusion, either by leaving unstated a key (but dubious) premise, restating a false premise in the conclusion, or reasoning in a circle
Complex question

asks two or more questions while making it seem like only one is asked, such that the answerer is put in a position of having to give one answer to both questions, which may have different answers.

false dichotomy
involves a disjunction (either...or) and only two alternatives, one of which is obviously not the case, though there are many more alternatives possible.
suppressed evidence
an argument can appear stronger than it is if it eaves out a crucial piece of evidence, in light of which the other premises would have to be reinterpreted and the conclusion would be false.
equivocation
conclusion of an argument depends on an ambiguous use of a certain word
amphiboly
when someone takes an ambiguous statement of someone else, and draws a false conclusion as a result of the ambiguity.

composition

characteristics that parts of something truly have, and suppose that the whole has the same characteristics

division

assumes what is true of a group must be true of each individual member