this is what I've come up with:
a) ∀x(x ∈ A → (x⇔ø v x ⇔ n))
b) ∀z(z ∈ A ⇔ z = x)
C) i didnt mistype, "ø ∈ A" is what the question said. i guess it's just a typo by the prof.
let me know what you think of the two answers i do have though.
thanks a lot!
i need to covert the following conditional statements into logical notation using propositional connectives and quantifiers:
a) A has at most one element
b)A is a singleton
c)ø ∈ A
you don't have to give me the answers, just help me get started or give me some hints