CUNY talk on 7 feb '23: Effective infinitesimals in ℝ (MOPA) (video). Alternatively, https://youtu.be/YE68yptMMeQ
See article 23c
A more elementary version of the talk: at Penn State, 13 sep '23
Talk at Australasian Logic Colloquium: Brisbane, 6 november '23
Don't miss Karel Hrbacek's zoom talk on Szemeredi, Jin, and SPOTS at MOPA on 12 dec '23, 1:00pm NY time: Abstract of Hrbacek's talk and video of Hrbacek's talk
See also
Infinitesimal analysis without the axiom of
choice
Fermat
Leibniz
Euler
Cauchy
Skolem
Robinson
Nelson
Hrbacek
More on infinitesimals
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