the titivation happens.
sent1: that that the collaring does not occur and the swimming pedestal does not occur is not incorrect is not correct. sent2: if the fact that the collar does not occur and the swimming pedestal does not occur does not hold the titivation happens.
sent2 & sent1 -> hypothesis;
$hypothesis$ = the titivation happens. ; $context$ = sent1: that that the collaring does not occur and the swimming pedestal does not occur is not incorrect is not correct. sent2: if the fact that the collar does not occur and the swimming pedestal does not occur does not hold the titivation happens. ; $proof$ = 
sent2 & sent1 -> hypothesis; __PROVED__