Tag Archives: Dugald Macpherson

From permutation groups to model theory

I cannot resist a conference with a title like this! But in this case, there is another very important reason to attend. In the mid-1970s, when I began being interested in infinite permutation groups (I had been a strictly finite … Continue reading

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Three versus four

The title is homage to the Gödel’s Last Letter and P=NP blog, which a week ago had a post entitled Two versus three. At the problem session at the Banff meeting last night, Dugald Macpherson and Andras Pongracz posed various … Continue reading

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