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May 5, 2017 at 20:32 history edited Stefan Kohl
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Mar 24, 2017 at 15:10 comment added Silvia Ghinassi Maybe I am looking at this the wrong way, but the difference in the two definitions is whether you allow "a few" corners or intersections of two Lipschitz images; I don't see why a statement of that kind would hold considering that we only look at things up to measure zero we can't conclude pointwise statements. I am not sure if you are familiar with rectifiability, but just FYI what people refer to as "$k$-rectifiability" nowadays is your definition (3) (Federer's terminology is not widely used anymore), see Wikipedia.
Feb 23, 2017 at 14:53 history asked Paul-Benjamin CC BY-SA 3.0