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Philosophy
Quick fact
In standard deontic logic, permission is not simply the absence of prohibition—it is logically equivalent to 'not obligatory that not' (Pφ ≡ ¬O¬φ), meaning that what is permitted is exactly what is not forbidden, revealing a subtle logical symmetry.
Why this is interesting
We say 'You may go' and 'You must stay' with ease, but how do we reason with such statements? What does it really mean for something to be permitted?
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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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Open a subject to see its complete shape at a glance. You can always return here and choose something else.
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…
Complete subject map
Move from the one-screen overview into all 19 areas. Open any area, compare possible Paths and return to the overview whenever you want.
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This background view organises existing cards. It is separate from the authored lessons above.
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