Qiaochu_Yuan comments on Second-Order Logic: The Controversy - Less Wrong

24 Post author: Eliezer_Yudkowsky 04 January 2013 07:51PM

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Comment author: hairyfigment 05 January 2013 12:32:53AM 6 points [-]

Zah? The linked answer says,

Every model of ZFC has an element that is a model of ZFC.

It goes on to say that this need not hold when we interpret "model of ZFC" in the sense of the (outer) model.

Comment author: Qiaochu_Yuan 05 January 2013 12:15:43PM 1 point [-]

The linked answer is talking about models of ZFC in an external sense and Eliezer is talking about them in an internal sense.