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REVIEW/REMINDERS
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* an ARGUMENT (in the world of critical thinking) is
a GROUP OF STATEMENTS that INCLUDE the following:
* one or more of this group of statements are intended as
SUPPORT for that argument.
These SUPPORTING statements are called PREMISES
* one statement is what the argument is intended to
CONVINCE or PERSUADE.
This statement is called the CONCLUSION.
* SO, within the set of statements making up an argument:
* the premise statement(s) and the conclusion statement should
be RELATED or LINKED in some way.
* the premise statement(s) should be presented with the INTENT of
persuading one to support the conclusion statement
* the conclusion statement should be something DERIVED from the premise
statement(s), and not be a simple observation.
* the conclusion statement should NEED (or at least USE) the
premise statements in order to be argued effectively
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* some examples of sets-of-statement(s) that are NOT ARGUMENTS:
* reports - simply convey information, but do not try to persuade
* weather reports, news reports
* The low temperature will be 11 degrees Celsius tomorrow,
and the high temperature will be 18 degrees Celsius tomorrow.
It will be partly cloudy and humid.
* unsupported assertions - a statement without premises,
statements that don't follow from or imply any other
statements
* It's going to rain today. I like chocolate.
* [yes, this is from the silly extreme -- BUT neither
follows from nor implies the other, and there is
no attempt to persuade...]
* conditional statements - an "if-then" statement with
antecedents (the "if" part) and consequents (the "then"),
but make no claim to persuasion.
* [CAN be hard to determine whether there is an IMPLIED
argument inside...!]
* If it is sunny, then we will picnic in the park.
* antecedent: if it is sunny
* consequent: then we will picnic in the park
* If money_left > 0, then buy next list item.
* antecedent: if money_left > 0
* consequent: then buy next list item
* illustrations - providing an example or two of how a statement
may be true does not necessarily make an argument.
* [CAN be hard to determine whether the arguer intends
to make an argument with the examples or not]
* (from the text) "Many wildflowers are edible. For example,
daisies and day lilies are delicious in salads."
* in an illustration, the purpose is not to provide
CONVINCING evidence for a conclusion, but a few notable
or representation examples of a claim.
* explanations - explaining why a statement may be true does not
necessarily try to prove or persuade that it is true.
* (from the course text) "The Titanic sank because it
hit an iceberg."
CAN rephrase: "Because it hit an iceberg, the Titanic sank."
* this is not trying to persuade you that the Titanic sank,
(that is rather common knowledge), it is just explaining
about its sinking
* a few BASIC TESTS to HELP in determining if a set-o-statements is
an argument:
* the common knowledge test
* is the statement that would be considered the conclusion
instead simply a matter of common knowledge
* the past event test
* is the statement that's meant to be the conclusion a matter of
easily confirmable past history?
* the author's intent test
* is the statement that's meant to be the conclusion a matter of
how the particular fact came to be?
* principle of charity test
* is the so-called argument so vaguely or poorly supported
that it would be kinder to say it is not an argument
(rather than, it is a baaad argument)
* next: we will start discussing the course text's
Chapter 3 - Basic Logical Concepts