Question: Let r be a relation on a scheme R and let s 1 and s 2 be relations on a scheme S, where S is
Let r be a relation on a scheme R and let s1 and s2 be relations on a scheme S, where S is a subset of R. Show thatif s1 is a subset of s2, then (r + s1) would be a superset of (r + s2). Is the converse true? Justify your answer.
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