that if the seaming keurboom occurs then that the seaming Pontiac but not the skewing occurs is not correct does not hold.
sent1: the seaming keurboom is prevented by that the seaming Pontiac but not the skewing occurs. sent2: that the seaming Pontiac occurs and the skewing does not occur is caused by the seaming keurboom.
void -> assump2: Let's assume that the seaming Pontiac occurs and the skewing does not occur.; sent1 & assump2 -> int1: the seaming keurboom does not occur.; void -> assump1: Let's assume that the seaming keurboom happens.; int1 & assump1 -> int2: this is contradiction.; [assump2] & int2 -> int3: that the seaming Pontiac happens and the skewing does not occur does not hold.; [assump1] & int3 -> hypothesis;
$hypothesis$ = that if the seaming keurboom occurs then that the seaming Pontiac but not the skewing occurs is not correct does not hold. ; $context$ = sent1: the seaming keurboom is prevented by that the seaming Pontiac but not the skewing occurs. sent2: that the seaming Pontiac occurs and the skewing does not occur is caused by the seaming keurboom. ; $proof$ = 
void -> assump2: Let's assume that the seaming Pontiac occurs and the skewing does not occur.; sent1 & assump2 -> int1: the seaming keurboom does not occur.; void -> assump1: Let's assume that the seaming keurboom happens.; int1 & assump1 -> int2: this is contradiction.; [assump2] & int2 -> int3: that the seaming Pontiac happens and the skewing does not occur does not hold.; [assump1] & int3 -> hypothesis; __DISPROVED__