both the non-cupricness and the backstopping firkin occurs.
sent1: that both the non-cupricness and the fulmination occurs is incorrect if the backstopping firkin does not occur. sent2: the cupricness does not occur if not the fulmination but the laving happens. sent3: both the anoperinealness and the backstopping affixation occurs. sent4: the backstopping firkin happens but the lecturing contracted does not occur. sent5: the backstopping affixation happens or the laving occurs or both if the fulmination does not occur. sent6: if the fact that the palatalizing burl does not occur and the roasting does not occur does not hold the palatalizing burl occurs. sent7: the backstopping bang does not occur and the riffling happens. sent8: that both the lecturing contracted and the anoperinealness occurs is not right if the palatalizing lend-lease does not occur. sent9: the thriving does not occur. sent10: the backstopping affixation does not occur if both the roasting and the lecturing localism happens. sent11: the lecturing localism occurs. sent12: both the palatalizing reform and the lecturing aerosol happens. sent13: that the fulmination but not the laving happens brings about the non-cupricness. sent14: the anoperinealness happens. sent15: if the fulmination does not occur and the laving does not occur then the cupricness does not occur. sent16: the palatalizing abator does not occur and the chastity does not occur. sent17: if the lecturing localism does not occur then that the palatalizing burl does not occur and the roasting does not occur does not hold. sent18: the fulmination does not occur and the laving does not occur if the roasting does not occur. sent19: the lecturing contracted does not occur.
void -> assump1: Let's assume that the roasting occurs.; assump1 & sent11 -> int1: the roasting happens and the lecturing localism happens.; int1 & sent10 -> int2: the backstopping affixation does not occur.; sent3 -> int3: the backstopping affixation happens.; int2 & int3 -> int4: this is contradiction.; [assump1] & int4 -> int5: the roasting does not occur.; int5 & sent18 -> int6: the fulmination does not occur and the laving does not occur.; int6 & sent15 -> int7: the cupricness does not occur.; sent4 -> int8: the backstopping firkin happens.; int7 & int8 -> hypothesis;
that not the cupricness but the backstopping firkin happens is wrong.
 -> hypothesis;
$hypothesis$ = both the non-cupricness and the backstopping firkin occurs. ; $context$ = sent1: that both the non-cupricness and the fulmination occurs is incorrect if the backstopping firkin does not occur. sent2: the cupricness does not occur if not the fulmination but the laving happens. sent3: both the anoperinealness and the backstopping affixation occurs. sent4: the backstopping firkin happens but the lecturing contracted does not occur. sent5: the backstopping affixation happens or the laving occurs or both if the fulmination does not occur. sent6: if the fact that the palatalizing burl does not occur and the roasting does not occur does not hold the palatalizing burl occurs. sent7: the backstopping bang does not occur and the riffling happens. sent8: that both the lecturing contracted and the anoperinealness occurs is not right if the palatalizing lend-lease does not occur. sent9: the thriving does not occur. sent10: the backstopping affixation does not occur if both the roasting and the lecturing localism happens. sent11: the lecturing localism occurs. sent12: both the palatalizing reform and the lecturing aerosol happens. sent13: that the fulmination but not the laving happens brings about the non-cupricness. sent14: the anoperinealness happens. sent15: if the fulmination does not occur and the laving does not occur then the cupricness does not occur. sent16: the palatalizing abator does not occur and the chastity does not occur. sent17: if the lecturing localism does not occur then that the palatalizing burl does not occur and the roasting does not occur does not hold. sent18: the fulmination does not occur and the laving does not occur if the roasting does not occur. sent19: the lecturing contracted does not occur. ; $proof$ = 
void -> assump1: Let's assume that the roasting occurs.; assump1 & sent11 -> int1: the roasting happens and the lecturing localism happens.; int1 & sent10 -> int2: the backstopping affixation does not occur.; sent3 -> int3: the backstopping affixation happens.; int2 & int3 -> int4: this is contradiction.; [assump1] & int4 -> int5: the roasting does not occur.; int5 & sent18 -> int6: the fulmination does not occur and the laving does not occur.; int6 & sent15 -> int7: the cupricness does not occur.; sent4 -> int8: the backstopping firkin happens.; int7 & int8 -> hypothesis; __PROVED__