An “admissible” generalization of a theorem on countable ∑11 sets of reals with applications

Recursive pseudo-well-orderings

Transactions of the American Mathematical Society · 1968 · 119 citations · Full text

Natural Sciences, Computer Science, Mathematics +12

The number of countable models

Michael Morley · Journal of Symbolic Logic · 1970 · 108 citations

Humanities, Mathematics, Logic +6

Perfect subsets of definable sets of real numbers

Richard Mansfield · Pacific Journal of Mathematics · 1970 · 83 citations · Full text

Natural Sciences, Mathematics, Number Theory +7

Scott sentences and admissible sets

Mark Nadel · Annals of Mathematical Logic · 1974 · 76 citations

Natural Sciences, Mathematics, Set Theory +4

Models with compactness properties relative to an admissible language

Jean-Pierre Ressayre · Annals of Mathematical Logic · 1977 · 59 citations

Computing, Computer Science, Knowledge Representation +10