Tell whether logically or causally possible and example why a)Superman is not causally possible.
b)A squared circle is logically impossible, though it is causally possible.
c)Aliens are not logically possible.
d)A line without points is logically possible.

Notes On This:
1. if p is conceivable it means it is coherently imaginable (imagination is a mental faculty, a thought process linked to rationality).

2. the first step in the evidence that p is possible is to conceive it. we say p is coherently imaginable when its details can be filled and its implication drawn without it being contradictory, i. e., ~(p & ~p).

clearly, not everything that is conceivable is possible, ex. superman, dragons, gremlins, succubbi, are all conceivable, but not possible.

if p is conceivable then, from 2. it's logically possible. finally,

3. p is causally possible if it doesn't violate a law of nature.

how do logical possibility (LP) and causal possibility (CP) relate?

LI → CI
CP → LP