Rules:

5 days, 3 variables ( F I J )

F>J

Variables can only be used max twice

Variables cannot be used consecutively

Question: What must be true?

Answers:

There is 1 F

There are 2 Fs

There is 1 I

There are 2 Is

There is 1 J

(F/I)_ _ _ (I/J)

I've already made an inference from the original Question to knock out 2 of the variables and get it down to 3, but I am trying to figure out how others would approach this. I would prefer to not have to make any hypos.