that the foreplay is not photic and it is not a chance is not true.
sent1: the mother-in-law does not hum foreplay and is fleshy if it is not a Chattahoochee. sent2: the fact that the foreplay is a kind of non-photic thing that is not a chance does not hold if the tautog is not photic. sent3: if the mother-in-law does not hum foreplay but it is fleshy the tautog is not photic. sent4: the mother-in-law is not a Chattahoochee. sent5: the mother-in-law does not hum foreplay and is photic. sent6: either everything is a kind of a Cotacachi or it is not diamagnetic or both. sent7: that the foreplay is non-photic thing that is not fleshy does not hold.
sent1 & sent4 -> int1: the mother-in-law does not hum foreplay but it is fleshy.; int1 & sent3 -> int2: that the tautog is non-photic is true.; int2 & sent2 -> hypothesis;
the foreplay is not photic and it is not a chance.
sent6 -> int3: the mother-in-law is a Cotacachi and/or it is non-diamagnetic.;
$hypothesis$ = that the foreplay is not photic and it is not a chance is not true. ; $context$ = sent1: the mother-in-law does not hum foreplay and is fleshy if it is not a Chattahoochee. sent2: the fact that the foreplay is a kind of non-photic thing that is not a chance does not hold if the tautog is not photic. sent3: if the mother-in-law does not hum foreplay but it is fleshy the tautog is not photic. sent4: the mother-in-law is not a Chattahoochee. sent5: the mother-in-law does not hum foreplay and is photic. sent6: either everything is a kind of a Cotacachi or it is not diamagnetic or both. sent7: that the foreplay is non-photic thing that is not fleshy does not hold. ; $proof$ = 
sent1 & sent4 -> int1: the mother-in-law does not hum foreplay but it is fleshy.; int1 & sent3 -> int2: that the tautog is non-photic is true.; int2 & sent2 -> hypothesis; __PROVED__