On 14/06/2013 11:35, Andy Turner wrote:
Do dead persons have an age?
That depends.
Can depend on what you mean by person and what you mean by age. If <me>
denotes me in an enduring sense, i.e. I am the same person I was
yesterday, then my age is a function of time, I'm older today than I was
yesterday.
In that sense of person, a dead person can/does have an age - a function
of time. I'll leave it to others to choose which ranges of time that
function has a defined value for and indeed what the range of that
function is, i.e. whether it includes <undefined>.
Unless you want to explore issues involving change over time, it is
simpler to stick to examples like date of birth/death.
Brian