FAQ

• analysis v synthesis

• abstract v concrete

• extensional v intensional

• composition v decomposition

Misc

• math is always in pursuit for generalization

• equality, equivalence, isomorphism, (equality up to some isomorphism)

• 'up to', property that holds "up to"

Opposing pairs

• if v iff

• naive v axiomatic

• generalization v abstraction

• (analysis & synthesis) v (decomposition & composition)

• equality & equivalence

• duals, duality, opposites, inverses

• invented or discovered