that there exists something such that if it is not protestant and it is a kind of a Dominican then it is pyloric is false.
sent1: the nondescript is pyloric if it is protestant and it is a Dominican. sent2: there exists something such that if it is protestant and Dominican then it is pyloric. sent3: if something is not a stibnite but it is not non-Dominican then it is abstemious. sent4: if the nondescript is both not protestant and a Dominican it is pyloric.
sent4 -> hypothesis;
the fact that that the pageboy is abstemious is not incorrect if the pageboy is not a kind of a stibnite but it is a kind of a Dominican is true.
sent3 -> hypothesis;
$hypothesis$ = that there exists something such that if it is not protestant and it is a kind of a Dominican then it is pyloric is false. ; $context$ = sent1: the nondescript is pyloric if it is protestant and it is a Dominican. sent2: there exists something such that if it is protestant and Dominican then it is pyloric. sent3: if something is not a stibnite but it is not non-Dominican then it is abstemious. sent4: if the nondescript is both not protestant and a Dominican it is pyloric. ; $proof$ = 
sent4 -> hypothesis; __DISPROVED__