For Example,

Solution A already exists, however it is a poor solution. We created solution B. The existence of B however, does not _____ the existence of A.

I was thinking preclude, however I thought that given that A already exists, this wouldn't fit. Thoughts?


To be clear, what I mean is that both are allowed to exist at the same time. ie. The existence of B doesn't mean A can't exist and be used.

I thought I might be able to use: The existence of B does not preclude the existence of A.

However, I'm unsure if this is correct.

  • Invalidate? Disprove? Not sure what you are seeking. – puppetsock Jul 23 at 13:41
  • 6
    I think the word you seek IS preclude. – FumbleFingers Jul 23 at 13:48
  • A bit too existential for me. And creationist. It’s not clear what you are trying to say. Is this a mathematical solution and you are saying both are correct? Are you saying that you have found a better way of doing something (counting heads rather than counting legs and dividing by two) but both will work? I think that if you formulate your question in simple terms you will be able to answer it yourself. – David Jul 23 at 17:35
  • Hi Tyler, welcome to EL&U. You could say, 'The existence of B however, does not rely on the existence of A. – GoodJuJu Jul 23 at 22:16
  • disavow, negate, exclude – SrJoven Jul 23 at 22:34


  • to deny the existence, evidence, or truth of: an investigation tending to negate any supernatural influences.
  • to nullify or cause to be ineffective: Progress on the study has been negated by the lack of funds.

So, "The existence of B however, does not negate the existence of A."

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