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A note on profinite completions and canonical extensions

Gouveia, M. J.

Algebra Universalis, 64(1-2) (2010), 21-23

J. Harding has proved that the profinite limit of an algebra A in a finitely generated variety of monotone lattice expansions coincides with its canonical extension. In this note we drop the monotonicity of the additional operations and prove the same result.