How to publish proof of something if the academic level is lower than expected and cannot publish to a journal or a conference? I am an undergraduate student with an interest in Computer science, so recently i have discovered new concepts and algorithms related to patterns and simulations (i.e biological simulations &amp; computational models simulations), and how they can be related easily, extremely easily to mathematics in a way that it would envolve a single rule of (1+1=2) and it would take forever to fully analyse and understand all the possible outputs (all the biological &amp; computational simulations) based on that simple rule. 

So i have read about similar ideas that exist today (suppose we name it X), it took about (3) well-known physicists and mathematicians (20-30) years to introduce (X) and be accepted in the literature, mainly (X) is based on  two important topics in computer science (Turing machines &amp; Self-replicating machines) these two topics can be considered as the core idea of computers, so like any other researcher i wrote the ideas explaining every detail neatly and revised it more than (30) times then contacted (3) journals about it and they refused to publish although they said and know that the ideas are novel, new and applicable ...

I went to contact some professional people in the field, they still suggested me to submit it to a journal or present it in a conference, so i went for the second choice, they replied "the proofs and ideas in the research paper are true but you can't present something that is not in your area of expertise and even if it was, you still can't because the different academic level between the presenter and the audience, it would be suitable to publish it in a journal", so here is my problem: As an undergraduate, i have a valid proof of something, how to publish it ? So,

1) I have contacted some related journals and they refused.

2) I have submitted the paper to a conference and they refused. 

3) Contacted professional people and refered to option (1) &amp; (2).

What's next to do ? Also, this seems to be on-the-edge situation, but i know there is one more thing i can do.
I will echo @jakebeal's skepticism about your results themselves - I would suggest having a long, serious, and honest discussion with a professional mentor about the novelty and importance of what you've found. This is important both for presenting your ideas, and deciding where they should end up - I certainly have thoughts that I know don't "rate" $TopJournal.

That being said, there's nothing about being an undergraduate student that would present you from publishing in a solid journal. For example, as an undergraduate working in the field you described, I published in several solid journals. There's nothing that would stop a paper from being published just because the author is an undergraduate.

You've said you've contacted several journals and conferences, and they've refused - have they said why? Have you spoken to your mentors to make sure your paper is actually submission ready - the process is non-trivial, and important even if your findings are genuinely important. What you should do next, if you're genuinely interested in moving your finding forward, is to talk to people in the field, make sure the idea is ready to publish and that you've got a solid notion both of its importance and how to "sell" the concept to an editor, and then proceed from there.