Any FV-Process can be represented as the difference of two increasing (or decreasing) processes and so any FV-Process is a quasimartingale. Due to Raos Theorem any FV-Process is a special semimartingale.
Is this statement correct or did I make a mistake? If it's correct, can this statement be deducted easier or is it just trivial and I haven't seen this?
I would be very grateful if you helped me.
Thanks in advance.