the on-siteness occurs if the divaricating palfrey happens.
sent1: if the fact that the weaving does not occur and the uptown occurs is false then the on-siteness occurs. sent2: the fact that the weaving does not occur but the uptownness happens does not hold if the divaricating palfrey happens.
void -> assump1: Let's assume that the divaricating palfrey happens.; sent2 & assump1 -> int1: the fact that not the weaving but the uptown happens is false.; sent1 & int1 -> int2: the on-siteness happens.; [assump1] & int2 -> hypothesis;
$hypothesis$ = the on-siteness occurs if the divaricating palfrey happens. ; $context$ = sent1: if the fact that the weaving does not occur and the uptown occurs is false then the on-siteness occurs. sent2: the fact that the weaving does not occur but the uptownness happens does not hold if the divaricating palfrey happens. ; $proof$ = 
void -> assump1: Let's assume that the divaricating palfrey happens.; sent2 & assump1 -> int1: the fact that not the weaving but the uptown happens is false.; sent1 & int1 -> int2: the on-siteness happens.; [assump1] & int2 -> hypothesis; __PROVED__