that the feather and/or the non-insectivorousness happens if the proclamation happens is not correct.
sent1: the feathering occurs and/or the insectivorousness occurs. sent2: the proclamation does not occur if the fact that the feathering happens or the insectivorousness does not occur or both does not hold.
void -> assump1: Let's assume that that either the feathering or the non-insectivorousness or both occurs does not hold.; sent2 & assump1 -> int1: the proclamation does not occur.; void -> assump2: Let's assume that the fact that the proclamation happens is not false.; int1 & assump2 -> int2: this is contradiction.; [assump1] & int2 -> int3: the feather or the non-insectivorousness or both happens.; [assump2] & int3 -> hypothesis;
$hypothesis$ = that the feather and/or the non-insectivorousness happens if the proclamation happens is not correct. ; $context$ = sent1: the feathering occurs and/or the insectivorousness occurs. sent2: the proclamation does not occur if the fact that the feathering happens or the insectivorousness does not occur or both does not hold. ; $proof$ = 
void -> assump1: Let's assume that that either the feathering or the non-insectivorousness or both occurs does not hold.; sent2 & assump1 -> int1: the proclamation does not occur.; void -> assump2: Let's assume that the fact that the proclamation happens is not false.; int1 & assump2 -> int2: this is contradiction.; [assump1] & int2 -> int3: the feather or the non-insectivorousness or both happens.; [assump2] & int3 -> hypothesis; __DISPROVED__