CRITICAL THINKING: REASON AND
EVIDENCE D265 QUESTIONS AND
ANSWERS WITH COMPLETE
SOLUTIONS 100% CORRECT !!!
Proposition
Definition: A proposition is a statement that can be either true or false. It's
a declarative sentence that asserts a fact, a belief, or something that can be
verified.
Example: "The Earth orbits the Sun." This is a proposition because it can be
checked for truth, and it is true.
Non-Proposition
Definition: A non-proposition refers to sentences that are not statements
about matters of fact. These cannot be classified as true or false because
they do not make a factual claim.
Examples:
o Questions: "What time is it?"
o Commands: "Close the door."
o Exclamations: "Wow!"
These cannot be true or false because they don't assert anything that could be
verified.
Simple Proposition
Definition: A simple proposition is a statement that has no internal logical
structure. It stands alone as true or false without relying on the truth of
other parts or propositions.
, Example: "The sky is blue." This is a simple proposition because it stands
alone as a statement that can be either true or false, and its truth value
doesn't depend on any other proposition.
Complex Propositions
Definition: A complex proposition is made up of two or more simple
propositions connected logically. The truth of a complex proposition
depends on the truth of its parts and how those parts are linked.
Example: "The sky is blue, but it doesn't look blue to me right now."
o The first part "The sky is blue" is true.
o The second part "it doesn't look blue to me right now" is true or false
depending on perspective.
o The logical structure uses "but," which connects two simple
propositions.
Premise
Definition: A premise is a proposition that supports or provides evidence for
the conclusion of an argument. It serves as a foundation for the conclusion.
Example: "All poodles have curly hair." This is a premise in an argument
that could be used to support the conclusion "Rex is a poodle, so Rex has
curly hair."
Bad Inferential Structure
Definition: A bad inferential structure refers to an argument with invalid
or weak reasoning, where the premises do not logically lead to the
conclusion. Even if the premises are true, the conclusion may not follow, or
the argument may lack sufficient support for the conclusion.
Example:
o Premise: "All poodles are dogs."
EVIDENCE D265 QUESTIONS AND
ANSWERS WITH COMPLETE
SOLUTIONS 100% CORRECT !!!
Proposition
Definition: A proposition is a statement that can be either true or false. It's
a declarative sentence that asserts a fact, a belief, or something that can be
verified.
Example: "The Earth orbits the Sun." This is a proposition because it can be
checked for truth, and it is true.
Non-Proposition
Definition: A non-proposition refers to sentences that are not statements
about matters of fact. These cannot be classified as true or false because
they do not make a factual claim.
Examples:
o Questions: "What time is it?"
o Commands: "Close the door."
o Exclamations: "Wow!"
These cannot be true or false because they don't assert anything that could be
verified.
Simple Proposition
Definition: A simple proposition is a statement that has no internal logical
structure. It stands alone as true or false without relying on the truth of
other parts or propositions.
, Example: "The sky is blue." This is a simple proposition because it stands
alone as a statement that can be either true or false, and its truth value
doesn't depend on any other proposition.
Complex Propositions
Definition: A complex proposition is made up of two or more simple
propositions connected logically. The truth of a complex proposition
depends on the truth of its parts and how those parts are linked.
Example: "The sky is blue, but it doesn't look blue to me right now."
o The first part "The sky is blue" is true.
o The second part "it doesn't look blue to me right now" is true or false
depending on perspective.
o The logical structure uses "but," which connects two simple
propositions.
Premise
Definition: A premise is a proposition that supports or provides evidence for
the conclusion of an argument. It serves as a foundation for the conclusion.
Example: "All poodles have curly hair." This is a premise in an argument
that could be used to support the conclusion "Rex is a poodle, so Rex has
curly hair."
Bad Inferential Structure
Definition: A bad inferential structure refers to an argument with invalid
or weak reasoning, where the premises do not logically lead to the
conclusion. Even if the premises are true, the conclusion may not follow, or
the argument may lack sufficient support for the conclusion.
Example:
o Premise: "All poodles are dogs."
