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11 April 2024
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N 16:15 | Injection/Examples/Arbitrary Example 1 2 changes history +1,035 [Prime.mover (2×)] | |||
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16:15 (cur | prev) +28 Prime.mover talk contribs | ||||
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15:33 (cur | prev) +1,007 Prime.mover talk contribs (Created page with "== Example of Injection == <onlyinclude> Let $S$ be the set $\set {3, 6}$. Let $T$ be the set $\set {9, 36, 150$. Let $f: S \to T$ be the square function: :$\forall x \in S: \map f x = x^2$ Then $f$ is an injection. </onlyinclude> == Proof == We have: {{begin-eqn}} {{eqn | l = \map f 3 | r = 9 }} {{eqn | l = \map f 6 | r = 36 }} {{end-eq...") |
11:51 | Injection/Examples diffhist +114 Prime.mover talk contribs |