Theorem ax12or 1530

Description: Alias for ax-i12 1529, to be used in place of it for labeling consistency. (Contributed by NM, 3-Feb-2015.)

Assertion

Ref	Expression
ax12or	|- ( A. z z = x \/ ( A. z z = y \/ A. z ( x = y -> A. z x = y ) ) )

Proof of Theorem ax12or

Step	Hyp	Ref	Expression
1		ax-i12 1529	1 |- ( A. z z = x \/ ( A. z z = y \/ A. z ( x = y -> A. z x = y ) ) )

Syntax hints:   -> wi 4   \/ wo 709   A.wal 1370

This theorem was proved from axioms:  ax-i12 1529

This theorem is referenced by:  ax12  1534  hbequid  1535  hbae  1740  equvini  1780  equveli  1781  dveeq2  1837  dveeq2or  1838  dvelimALT  2037  dvelimfv  2038