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Commit 2021-11-08 11:43 48abaedc

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feat(analysis/special_functions/complex/arg): continuity of arg outside of the negative real half-line (#9500)

Estimated changes

Modified src/analysis/special_functions/complex/arg.lean

added theorem complex.arg_eq_nhds_of_re_neg_of_im_neg

added theorem complex.arg_eq_nhds_of_re_neg_of_im_pos

added theorem complex.arg_eq_nhds_of_re_pos

added theorem complex.arg_of_re_neg_of_im_neg

added theorem complex.arg_of_re_neg_of_im_nonneg

added theorem complex.arg_of_re_nonneg

added theorem complex.arg_of_re_zero_of_im_neg

added theorem complex.arg_of_re_zero_of_im_pos

added theorem complex.continuous_at_arg

added theorem complex.continuous_at_arg_of_re_neg_of_im_neg

added theorem complex.continuous_at_arg_of_re_neg_of_im_pos

added theorem complex.continuous_at_arg_of_re_pos

added theorem complex.continuous_at_arg_of_re_zero