Coredump said:
Now if "I will give you $20, even if you punch me in the face" is the *same* as ""I will give you $20, *only when* you punch me in the face", which is what is being asserted,
No, that is
not what is being asserted.
Coredump said:
they why even need the "however", since that is clearly not one of the two things listed.
And if "I will give you $20, even if you punch me in the face" is *not* the same as ""I will give you $20, *only when* you punch me in the face",
Then why do you say "She retains her Dexterity bonus to AC (if any) even if she is caught flat-footed or struck by an invisible attacker." is the same as "She retains her Dexterity bonus to AC (if any) only when she is caught flat-footed or struck by an invisible attacker.?
Let me try to explain it to you again, since you clearly haven't understood what is actually being said.
A rogue (or anyone else) retains her Dexterity bonus to AC unless there is some explicit exception that applies. Those exceptions include (1) being flat-footed, (2) being struck by an invisible attacker, (3) being stunned, (4) being the victim of a feint, etc. This is the normal state of affairs, or the "default" if you prefer.
The uncanny dodge ability allows a rogue to retain her Dexterity bonus to AC
even if certain exceptions to the
normal rules apply, and states what those exceptions-to-the-exceptions are: (1) even if flat-footed, and (2) even if struck by an invisible attacker. It says
nothing about being stunned, the victim of a feint, etc.
and therefore, in those situations, the normal rules apply.
Note that this is very different from saying "She retains her Dexterity bonus to AC (if any)
only when she is caught flat-footed or struck by an invisible attacker," as you claim. If
that were the case, the rogue would lose her Dexterity bonus to AC in normal situations (where she is not flat-footed, struck by an invisible attacker, stunned, etc.)!