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If someone wants to make a prohibition on himself from eating apples and has some apples in front of him and uses a language of "konem" in his neder and says "these apples" then they become forbidden (Shulchan Aruch YD 216:1). What about if the person says something along the lines of "konem alei" (it should be forbidden to me) the "thing that I know" and has in his mind at that moment apples (even though he doesn't speak this out specifically in the language of the neder.) Are the apples still forbidden?

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