Semester 2 revision Flashcards
(36 cards)
Modus ponens
Affirms, if A then B. A, therfore B
Modus tollens
Denies, if A then B. Not B, therefore not A
Premises
Reasons offered in support
Conclusion
Claims the argument makes
Deductive argument
A valid argument with true premises and a true conclusion (are the premises true?, is the argument valid?)
Inductive argument
argument where the conclusion doesn’t follow the premises (are the premises acceptable, relevant or compelling?)
Generalisation
Obtained by inferences from a specific case
Induction
Giving rise to something
Empiricism
All knowledge is based on experience
Scepticism
True knowledge is uncertain
Change
How internal and external environments interact to create change
Causation
Relation between two successive events (cause and effect)
Scientific method
Testing of universal theories by comparing deductive statements with observations of the world
Observations and their problems
Conclusions drawn based on what people see
Problems- hard to be unbiased, ‘trained eye’ means some won’t see what others do, some things unobservable
Inductions and their problems
Process of generalising from a sample of evidence
Problems- risky
Explanations
Involves finding a story that ‘fits the facts’, Need a mechanism to be a complete explanation
Hume’s theory
Anything might cause anything
Issues with Hume’s theory
We can sometime observe causation (when digging a hole you can see chunks of dirt moving), Doesn’t distinguish between real causes and accidental associations, Can’t tell difference between inputs and outputs (what leads to what)
Aristotle’s theory
Distinguished between three kinds of change- kinesis, boulesis and morphesis, Kinesis- physical movement (object changing location), Boulesis- changes in our will (changes that lead to emotions), Morphesis- change that happens over time (caterpillars to butterflies)
Aristotle’s form of causation
Material- something inherent in the material the object is made of that allows change (clay can be moulded), Efficient/moving cause- provides the ‘power’ of the change (potter moulding clay), Final cause- intended end point of change (making a cup), Formal cause- blueprint/plan (cup shape formed by a potter)
Thought experiment
Take place in the imagination and only involve ideas, Conceptual questions where performing the experiment wouldn’t give us an answer
Dialectic
Dialogue between two or more points of view, Begins with a claim that is challenged meaning a counter-example together, Involves a thesis (idea), antithesis (opposing idea) and synthesis (resolves conflict)
Rational proof
Shows that not all knowledge is based on observation and experience (no actual measurements are needed)
Libertarianism
View that free will exists, Human beings are capable of making choices that aren’t determined by the prior causes of behaviour, Subscribes to principle of alternative possibility suggesting that no one can be held for their behaviour unless there was some alternative