that something does not strip does not hold.
sent1: the reel is ulcerative. sent2: the Drambuie is ulcerative if it strips. sent3: the phenomenon is not a Salpidae but it is ulcerative. sent4: the Drambuie is not ulcerative if the phenomenon is not a Salpidae and is ulcerative. sent5: there is something such that it does strip. sent6: the phenomenon is not non-ulcerative.
void -> assump1: Let's assume that the Drambuie is a strip.; sent2 & assump1 -> int1: the Drambuie is ulcerative.; sent4 & sent3 -> int2: the Drambuie is not ulcerative.; int1 & int2 -> int3: this is contradiction.; [assump1] & int3 -> int4: the Drambuie is not a strip.; int4 -> hypothesis;
$hypothesis$ = that something does not strip does not hold. ; $context$ = sent1: the reel is ulcerative. sent2: the Drambuie is ulcerative if it strips. sent3: the phenomenon is not a Salpidae but it is ulcerative. sent4: the Drambuie is not ulcerative if the phenomenon is not a Salpidae and is ulcerative. sent5: there is something such that it does strip. sent6: the phenomenon is not non-ulcerative. ; $proof$ = 
void -> assump1: Let's assume that the Drambuie is a strip.; sent2 & assump1 -> int1: the Drambuie is ulcerative.; sent4 & sent3 -> int2: the Drambuie is not ulcerative.; int1 & int2 -> int3: this is contradiction.; [assump1] & int3 -> int4: the Drambuie is not a strip.; int4 -> hypothesis; __DISPROVED__