HUMA 1160 Lecture Notes - Lecture 3: Syllogism, Attention, Temporality
Document Summary
Descartes knowledge how does descartes think knowledge should be expressed: my shirt is white. (empirical thus it is temporary), 1+1=2 (eternal thus it will always be that way). Four categories of truth: verification (to show if something"s true or false), modality (capture the mood of the speaker). Necessity (strongest) (what must be the case). Impossibility: temporality (if it"s true how long is it true?, origin (what is the origin of the source?) Any empirical claim can be falsified if the circumstances justify it. My shirt can be white now but it could be blue later. (contingent: it is the case but it doesn"t have to be the case). Mathematical equations do not depend on senses. 1+1 will always equal 2 so it is called eternal sentences. Empirical truth: anything that you learn through observation (senses) can at best have the modality of actuality; furthermore, anything that has the modality of actuality is subject to change.
