Philosophy Final Part 3 Flashcards
hypothesis
possible claims or theories that might explain evidence
theory
a big connected set of claims that we don’t know with absolute certainty
criteria for goodness of explanations
- H makes E more likely
- H is intrinsically plausible: simple or elegant
- H is extrinsically plausible: fits well with our view of the world
how arguments that can be interpreted as deductively fallacious are more charitably interpreted using IBE
i.e. Bob has a red face, so he must be mad
how is it that we can get lots of evidence for a hypothesis, without that hypothesis being worthy of belief
its not plausible
gambler’s fallacy
gambler knows game is fair but makes mistake about independence
i.e. three heads in a row, next one must be tails
reverse gambler’s fallacy
3 heads in a row, next one must be heads (winning streak)
fair gambling setup
- unbiased towards any outcome
- outcomes are independent
disjunction
P(A or B) = P(A) + P(B) - P(A and B)
disjunction with exclusivity
P(A or B) = P(A) + P(B)
conjunction with exclusivity
P(A and B) = 0
P(A) =
1 - P(not A)
P(A | B) =
1 - P(not A | B)
conjunction fallacy
like the representative heuristic
probability of linda being a feminist and a bank teller is lower than the probability she is just a bank teller
logical consequence rule
if B entails A, then B is less probable than A if P(A|B) = 1, P(B) <= P(A)