Mathematics
Mathematics, 24.03.2020 17:30, eldercunningham

The domain of discourse is sets. Suppose some predicate Q is true for all elemenst of A: βˆ€a ∈ A Q(a). Recall the definition of subset: X βŠ† Y is defined as βˆ€b ∈ X b ∈ Y . Suppose B βŠ† A and C βŠ† B. Prove that βˆ€c ∈ C Q(c)

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The domain of discourse is sets. Suppose some predicate Q is true for all elemenst of A: βˆ€a ∈ A Q(a)...

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