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Philosophy
Quick fact
David Lewis's semantics uses a 'closeness' ordering of possible worlds, where worlds that differ less from ours (e.g., in laws of physics) are considered more relevant when evaluating counterfactuals.
Why this is interesting
We say 'If I had left earlier, I would have caught the train.' But the past is fixed—so what makes that statement true or false? How can we judge a world that never happened?
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Subjects · study & training · careers
Choose something you are considering. FACTREE will give you a clear picture of what it contains, how its main parts connect and where it could lead.
This private catalogue connects 31 subjects, study routes and careers across six broad areas. Public Maps and learner routes remain off.
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See what programming involves, how its main areas connect, and whether you find the knowledge interesting enough to take it further.
Structuring the Programming Map…
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