[ilmath]A\cap (B-C)\eq(A\cap B)-C[/ilmath]

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Statement

Let [ilmath]A,\ B[/ilmath] and [ilmath]C[/ilmath] be sets. Then we claim: [ilmath]A\cap (B-C)\eq (A\cap B)-C[/ilmath][1]

Proof

Grade: D
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Draw a Venn diagram, makes sense.

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See also

References

  1. Alec's own work