
35Are backwardsinfinite causal sequences possible? (review)Logic and Logical Philosophy 28 (2). 2019.

1014Surreal Time and UltratasksReview of Symbolic Logic 9 (4): 836847. 2016.This paper suggests that time could have a much richer mathematical structure than that of the real numbers. Clark & Read (1984) argue that a hypertask (uncountably many tasks done in a finite length of time) cannot be performed. Assuming that time takes values in the real numbers, we give a trivial proof of this. If we instead take the surreal numbers as a model of time, then not only are hypertasks possible but so is an ultratask (a sequence which includes one task done for each ordinal number…Read more
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Areas of Specialization
Logic and Philosophy of Logic 
Mathematical Logic 
Philosophy of Mathematics 
Space and Time 