the flattop does not urinate and/or does not scrounge.
sent1: something is a CD. sent2: the flattop does not urinate and/or does not scrounge if there exists something such that it is a diachrony. sent3: there is something such that that it is not a kind of a CD is correct. sent4: the flattop does not urinate and/or it scrounges. sent5: either the flattop does not urinate or it does scrounge or both if there exists something such that it is a diachrony. sent6: if there is something such that it is a diachrony then the flattop does urinate and/or does not scrounge. sent7: if something is not a CD the elasmobranch is a diachrony. sent8: something does scrounge. sent9: the flattop either does urinate or does not scrounge or both.
sent3 & sent7 -> int1: the elasmobranch is a diachrony.; int1 -> int2: something is a kind of a diachrony.; int2 & sent2 -> hypothesis;
$hypothesis$ = the flattop does not urinate and/or does not scrounge. ; $context$ = sent1: something is a CD. sent2: the flattop does not urinate and/or does not scrounge if there exists something such that it is a diachrony. sent3: there is something such that that it is not a kind of a CD is correct. sent4: the flattop does not urinate and/or it scrounges. sent5: either the flattop does not urinate or it does scrounge or both if there exists something such that it is a diachrony. sent6: if there is something such that it is a diachrony then the flattop does urinate and/or does not scrounge. sent7: if something is not a CD the elasmobranch is a diachrony. sent8: something does scrounge. sent9: the flattop either does urinate or does not scrounge or both. ; $proof$ = 
sent3 & sent7 -> int1: the elasmobranch is a diachrony.; int1 -> int2: something is a kind of a diachrony.; int2 & sent2 -> hypothesis; __PROVED__