Related papers: Free algebras and the Freiheitssatz

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Major mistake. The paper has been withdrawn.

The paper has been withdrawn by the author due to a crucial error.

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The paper has been withdrawn by the author, due to it being fundamentally flawed. The author apologizes for any inconvenience it may have caused.

The paper is withdrawn.

This paper has been withdrawn by the author since the proof of Lemma 8 is not correct.

This paper has been withdrawn by the author. It will be replaced, substantially modified, by sections of the author's completed PhD thesis.

The paper has been withdrawn.

This paper has been withdrawn by the author, due an error in claim 1.

This paper has been withdrawn by the author due to a gap in the proof of Lemma 3.4

We have observed a gap in one of the arguments in the main theorem. We choose to withdraw the paper until we rectify the gap.

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This paper has been withdrawn by the author due to that the main results and approaches are closedly parallel to the ones in Lie algebra case.

This paper has been withdrawn by the author.

This paper has been withdrawn Abstract: This paper has been withdrawn by the author due to the publication.

This paper has been withdrawn by the author, due to a crucial error in page 5.

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This paper has been withdrawn by the author due to a crucial error.