2 problems
Strong conjecture. Every pre-quasi Gelfand triple is a quasi Gelfand triple.
Weak conjecture. Every pre-quasi Gelfand triple of Hilbert spaces is a quasi Gelfand triple.
Strong conjecture. Every pre-quasi Gelfand triple is a quasi Gelfand triple.
Weak conjecture. Every pre-quasi Gelfand triple of Hilbert spaces is a quasi Gelfand triple.