Let x and y be strings and let l be any language. we say that x and y are distinguishable by l if some string z exists whereby exactly one of the strings xz and yz is a member of l; otherwise, for every stringz, we havexz ∈ l whenever yz ∈ l and we say that x and y are indistinguishable by l. ifx and y are indistinguishable by l, we writex ≡l y. show that≡l is an equivalence relation.

Which group on the home tab allows you to add shapes to a powerpoint slide?

Competent nonverbal communication involves interacting with others in a manner that is appropriate for which of the following? select all that apply. situation task individuals

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