How do principle$-$first and applications$-$first reasoning derive their conclusions or facts?

$9$

Both derive from general principles or concepts.

Principle$-$first derives from patterns of factual observations while application$-$first from general

$12$

principles.

Principle$-$first derives from general principles while application$-$first is based on patterns of factual observations from the real world.

$15$

Both derive based on factual observations from the real world.