Abstract
We prove that if V=L then there is a Π11 maximal orthogonal (i.e., mutually singular) set of measures on Cantor space. This provides a natural counterpoint to the well-known theorem of Preiss and Rataj [16] that no analytic set of measures can be maximal orthogonal.
Citation
Vera Fischer. Asger Törnquist. "A co-analytic maximal set of orthogonal measures." J. Symbolic Logic 75 (4) 1403 - 1414, December 2010. https://doi.org/10.2178/jsl/1286198154
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