The aim of comprehensive coverage, which in 1936 had seemed quite practical, became less so as the years went by and by 1975 the rapid expansion in symbolic logic publications forced Church to give up this aspect and begin to provide only selective coverage.
Ang layunin ng komprehensibong coverage, na sa 1936 had seemed lubos na praktikal, ay naging mas mababa sa gayon bilang ng taon sa pamamagitan ng nagpunta at sa pamamagitan ng 1,975 ang mabilis na pagpapalawak sa sinasagisag na lohika pahayagan sapilitang Iglesia na ibigay sa up na ito aspeto at magsimula na magbigay lamang ang pumipili coverage.