Would /F and /J be an "or" sufficient condition or an "and" sufficient condition for /M?

Star Platinum

M → F
/J → /M

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/M

I took the contrapositive of M > F which got me /F > /M

Then I inferred that /F or /J would net me /M. Which means that the arrows can split in the sufficient condition.

Which means the sufficient assumption for /M would either be to negate F (/F), or to make it that /F > /J (/F > /J > /M)
Is this correct? Or am I missing some other possible sufficient assumption.