Symmetry as a Criterion for Comprehension Motivating Quine’s ‘New Foundations’
A common objection to Quine's set theory "New Foundations" is that it is inadequately motivated because the restriction on comprehension which appears to avert paradox is a syntactical trick. We present a semantic criterion for determining whether a class is a set (a kind of symmetry) which motivates NF.
Holmes, M. Randall. (2008). "Symmetry as a Criterion for Comprehension Motivating Quine’s ‘New Foundations’". Studia Logica, 88(2), 195-213. http://dx.doi.org/10.1007/s11225-008-9107-8