:: deftheorem defines |= CALCUL_1:def 11 :
for Al being QC-alphabet
for X being Subset of (CQC-WFF Al)
for A being non empty set
for J being interpretation of Al,A
for v being Element of Valuations_in (Al,A) holds
( J,v |= X iff for p being Element of CQC-WFF Al st p in X holds
J,v |= p );