最終更新日：2024/08/08
(set theory) Of a binary relation, to have every element of the right set occur at least once: ∀b∈B∃a∈A:(a,b)∈R⊆A⨯B
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right total
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(set theory) Of a binary relation, to have every element of the right set occur at least once: ∀b∈B∃a∈A:(a,b)∈R⊆A⨯B
right total
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