Whats philosophy/how do we do philosophy Flashcards
What is soundness
An argument that is valid and has true premises is a sound argument
When is an argument formally valid
If premises are true then conclusion must be true
What is formal logic
Formal logic is the study of formally valid arguments
What is a circular argument + example
A circular argument is when a conclusion is one of their premises. Someone who didn’t already believe conclusion is not going to accept it as a premise.
L: God exists.
Therefore, God exists.
M: God does not exist.
Therefore, God does not exist.
Both valid. One of them is sound. Neither of them are very good. Why?
What should good valid arguments be
good valid arguments must be sound and not beg the question.
Give an example of non demonstrative argument
Non-demonstrative arguments reach a conclusion based on probability rather than certainty. These arguments don’t provide guaranteed proof but instead suggest what is likely true based on the given evidence.
R: Despite years of looking, no one has ever seen a unicorn.
Therefore, unicorns do not exist.
T: It’s normally wrong to kill a person.
The bartender is a person.
Therefore, it would be wrong to kill the bartender.
Explain Abductive arguments or inference to the best explanation
Abductive arguments, or inferences to the best explanation, start with observations and seek the most likely, simplest explanation for those observations. It’s like when you wake up to find the ground wet outside; you infer it probably rained last night because that’s the most plausible reason. It’s not guaranteed to be true, but it’s the best guess given the evidence.
What is an inductive argument
: takes as premises a series of observations that exhibit a pattern, and then conclude that the pattern holds a general rule.
What kind of argument is commonly found in the natural sciences
abductive arguments
When is an argument valid
An argument is valid if and only if it is impossible for the premises to be true and the conclusion to be false
What is an argument that is valid and has true premises
sound argument
What is an argument
Sequence of statements.
Last claim in the sequence is the conclusion. The conclusion is what the argument seeks to establish/support
What are premises
Premises are statements asserted without proof in the context of the present argument (but which may be supported elsewhere).