the passableness does not occur.
sent1: the settlement occurs if the striking dry does not occur. sent2: the multiphaseness and the stand happens. sent3: the striking dry does not occur. sent4: the fact that that both the settlement and the multiphaseness occurs yields the impassableness is not incorrect.
sent2 -> int1: the multiphaseness occurs.; sent1 & sent3 -> int2: the settlement happens.; int1 & int2 -> int3: the settlement occurs and the multiphaseness occurs.; int3 & sent4 -> hypothesis;
$hypothesis$ = the passableness does not occur. ; $context$ = sent1: the settlement occurs if the striking dry does not occur. sent2: the multiphaseness and the stand happens. sent3: the striking dry does not occur. sent4: the fact that that both the settlement and the multiphaseness occurs yields the impassableness is not incorrect. ; $proof$ = 
sent2 -> int1: the multiphaseness occurs.; sent1 & sent3 -> int2: the settlement happens.; int1 & int2 -> int3: the settlement occurs and the multiphaseness occurs.; int3 & sent4 -> hypothesis; __PROVED__