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 Feb7 awarded Commentator Feb7 comment A proof (?) of a Cauchy Integral Theorem type claim I forgot to ask a question. The question is, have I erred? I would guess this isn't at all the proof which is expected, and I haven't had much experience using LDCT "in the wild" before, so I am, as usual, a bit uncertain. Feb7 revised A proof (?) of a Cauchy Integral Theorem type claim deleted 14 characters in body Feb7 asked A proof (?) of a Cauchy Integral Theorem type claim Feb6 asked Ring of rational numbers with odd denominator Jan24 revised Limit of exp(z) along a half-line added 12 characters in body Jan24 revised Limit of exp(z) along a half-line added 12 characters in body Jan24 comment Limit of exp(z) along a half-line Thanks for pointing that out. Jan24 revised Limit of exp(z) along a half-line added 50 characters in body Jan24 revised Limit of exp(z) along a half-line added 51 characters in body Jan24 asked Limit of exp(z) along a half-line Jan18 comment Convergence of a power series in the complex plane — does this argument work? Oh, I see. So, to get a derivation which is justified at each step from left to right, I should present the original chain of equalities backwards. Then I can forget about the bound. Jan17 revised Convergence of a power series in the complex plane — does this argument work? added 705 characters in body Jan17 revised Convergence of a power series in the complex plane — does this argument work? added 705 characters in body Jan17 revised Convergence of a power series in the complex plane — does this argument work? added 705 characters in body Jan17 comment Convergence of a power series in the complex plane — does this argument work? Thanks all. I think I'll type up the bounding of $|cos(nz)|$ once I've worked it out. Jan17 asked Convergence of a power series in the complex plane — does this argument work? Jan17 accepted Determining where a function is complex differentiable Jan17 comment Determining where a function is complex differentiable Thanks. I don't know how I missed that the equations are always satisfied when y=0. It's quite obvious now. Jan17 comment Determining where a function is complex differentiable Thanks for your answer.