F. L. Varpahovskij. О néréalizuémosti dizúnkcii néréalizuémyh formul logiki vyskazyvanij. Doklady Akadémii Nauk SSSR, vol. 161 (1965), pp. 1257–1258. - F. L. Varpahovskij. The nonrealizability of a disjunction of nonrealizable formulas of propositional logic. English translation of the preceding by Elliott Mendelson. Soviet mathematics, vol. 6 No. 2 (1965), pp. 568–570.
Keyword(s):
Keyword(s):
Keyword(s):
Keyword(s):
Keyword(s):
Keyword(s):