Description: An unordered pair of ordered pairs with first components 1 and 2 and real numbers as second components is a point in a real Euclidean space of dimension 2, determined by its coordinates. (Contributed by AV, 7-May-2023)
Ref | Expression | ||
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Hypotheses | prelrrx2.i | |
|
prelrrx2.b | |
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Assertion | prelrrx2b | |