Revision history of "Proof:Cardinality of evens"

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  • (cur | prev) 10:33, 28 May 2018Mdg39 (talk | contribs). . (494 bytes) (+494). . (Created page with "{{:Claim:cardinality of evens}} {{Proof|1=cardinality of evens|2= Let <math>f : X </math> be given by <math>f(2n) := n</math>. <math>f</math> is clearly a w...")