Need advice plz how to manage the NaN in the condition

Hey,

community.

I could manage so far the loadcaseprogramming but i have a problem how to get rid with the "NaN" value.

At Page 8 of the mathcad file i need the smalest safety factor which i calculate out of the 5 Calculations.

BUT WITHOUT THE NAN VALUE. When i do a minimum it shows me always a 0 when NaN occurs anywhere,

How Can i write the condition with excluding a zero result?

I just want to see the minimum safety factor without the zero.

Is there a Possibility to comprimise my programmcode?

Best thx =)