General Theory
-Explain why translating "s is visible to Jane" as a material conditional, such as "if s is near Jane (and the line of sight is unobstructed, etc.) then it will be seen by her," seems to be inadequate.

Question

General Theory 
-Explain why translating "s is visible to Jane" as a material conditional, such as "if s is near Jane (and the line of sight is unobstructed, etc.) then it will be seen by her," seems to be inadequate.

Quizplus · Accepted Answer

The Answer is The main problem stems from the fact that a false antecedent is sufficient for the material conditional being true. In this case then something would be visible to Jane just by the fact that it was never near her. But this could be true of something that is clearly not visible to her.

General Theory -Explain Why Translating "S Is Visible to Jane" as a Jane