Columbia subject headings:
Logic, Symbolic and mathematical--Congresses.
Model theory--Congresses.
Harvard subject headings:
Discriminant analysis.
Logic, Symbolic and mathematical--Congresses.
Logic, Symbolic and mathematical.
Mathematics--Congresses.
Mathematics.
Model theory--Congresses.
Multivariate analysis
Princeton subject headings:
Logic, Symbolic and mathematical--Congresses.
Model theory--Congresses.