Prima Paint does not apply to allegations of nonexistent (i.e., void) contracts.
In case of dissensus the contract is non-existing, i.e. void ab initio. ...
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... difference between a void (i.e., non-existent) contract and a voidable contract. A void contract is one which never had any binding legal effect, ...
... (important) fact, it makes the contract VOID, that is, NON-existent. (on edit: ...
... distinction between a transaction beingvoid, that is non-existent from its very ...
(c) Contracts for the sale or other disposition of land are required by statute to be in writing, otherwise they are invalid, i.e. there is no contract. Section 2(1) of the ...
All other contracts entered into by a minor are invalid, i.e.void. Contracts that are of a long-term nature, such as the acquiring of an interest in land or a firm, will ...
Hungary is numbered amongst those countries which continue to regard the reversal of an “invalid” (i. e. void or avoided)contract as part of contract law (CC ...
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A void contract, also known as a void agreement, is not actually a contract. A void contract cannot be enforced by law. Void contracts are different from voidable contracts, which are contracts that may be (but not necessarily will be) nullified.
http://en.wikipedia.org/wiki/Void_contract

De óvnálak az etióp jogászok még szubtilisebb terminológiájától :-)
Jurists distinguish between (1) non-existent, (2) null, i.e. void, (3) annullable, i.e. voidable, (4) unenforceable contracts.
http://abyssinialaw.com/uploads/Formation and Effects of Con...