Test 1 Flashcards
Argument
the process of reasoning from one claim to another
Premise
the principle upon which an argument is based, AKA the starting point of an argument
Logic
the study of the rules of valid inferences and rational arguments, AKA a sense of order
Rhetoric
the persuasive use of language to convince other people to accept your beliefs
-the study of the art of persuasion
Inductive Arguments
a process of reasoning in which the characteristics of an entire class or set of things is inferred on the basis of an acquaintance with some of its members. even though the conclusion is supported by the premises, it does not follow necessarily from the premises and its truth is not guaranteed by them.
-the truth of the premises does not guarantee the truth of the conclusion but it makes it likely to be true
Example: the first lipstick I pulled from my bag is red, the second lipstick I pulled from my bag is red, therefore all of the lipsticks in my bag are red.
Deductive Arguments
a process of reasoning from one principle to another by means of accepted rules of inference.a conclusion follows necessarily from the premises, so if you are certain of the premises you can be sure of the conclusion too.
-the truth of the premises guarantees the truth of the conclusion
Example: All dogs have ears, golden retrievers are dogs, therefore they have ears
Valid
refers to an ARGUMENT that correctly follows agreed upon rules of inference. always applies to arguments, not statements.
Sound
refers to an argument whose premises are true and that is valid
Necessary and Sufficient Conditions
A is necessary and sufficient for B when A is both logically required and enough to guarantee B (A if and only if B)
Example: Without water and oxygen (A) there would be no human life (B)
Reductio ad Absurdum
a form of argument in which one refutes a statement by showing that it leads to self-contradiction or an intolerable conclusion (trying to prove a claim by showing that the opposite is absurd)
Example: “If I walk under the ladder I will have bad luck.” “So if you walk under the ladder you will become homeless, get a disease and break your leg?”
Fallacies
an apparently persuasive argument that is really an error in reasoning; an invalid argument
Begging the question
merely restating as the conclusion of an argument as one of its premises. for example, “why do oysters give me indigestion?” “because they upset my stomach.”
-a fallacious argument where the truth of the conclusion is assumed in the premises
Argument from Ignorance (fallacy)
You haven’t disproven X, therefore I have a reason to believe that X is true. BUT just because something hasn’t been disproven, that doesn’t necessarily mean it is true.
-you haven’t disproven ghosts so i have a reason to believe in ghosts
Law of Non-Contradiction
Nothing can have a property and lack it at the same time and in the same way. (Something can’t be both X and not X at the same time, and in the same way) If the law was false we wouldn’t even survive or act.
Example: A car approaching you would, if the law were false, be both coming and not coming, so you would step out into the street and get run over.
Your coffee cannot be both hot and not hot at the same time in the same way
Objective Truth
there is one truth that is the same for all regardless of what or how we think about it.
Example: the shape of the earth. the earth is a globe whether you chose to believe it or not.
Relative Truth
truth is not objective, but is relative to something (individuals or societies)
Example: it’s relative to the truth but it’s problematic, almost like saying well this is my truth so I believe it
Theist
belief in an all-good, all-powerful (omnipotent), all-knowing (omniscient), present everywhere (omnipresent), transcendent (God is independent of the world), and personal God.
Atheist
the belief that there is no god.
Agnostic
Gods existence cannot be determined by humans
The Traditional Conception of God
- Omnipotent- all-powerful
- Omniscient- all knowing
- Omnipresent- god is everywhere
Deism
belief in a creator of the world alone, but rejects theism
Pantheism
God is identical to the natural world (the world is god)