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1)k precedes 2k in a

2)if k precedes 2k then 2k+1 precedes k in a

3)2k precedes 2k−1 in a

What I have tried:

I think the answer is number 1
Richard MacCutchan 12-Jun-21 12:36pm
I think there is some information missing; e.g. what is a and what are the criteria for a's contents?
Gerry Schmitz 13-Jun-21 1:21am
I though it was "in a ___"; and you had to guess the word. :0p
Maciej Los 17-Jun-21 2:39am
k = 2
2k = 4
2k + 1 = 5
2k - 1 = 3

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