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Step * of Lemma fpf-union-join-ap

∀[f,g,eq,x,R:Top].  (fpf-union-join(eq;R;f;g)(x) ~ fpf-union(f;g;eq;R;x))
BY
{ ((UnivCD THENA Auto) THEN RepUR ``fpf-ap fpf-union-join`` 0 THEN Auto) }

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Latex:

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Latex:
\mforall{}[f,g,eq,x,R:Top].    (fpf-union-join(eq;R;f;g)(x)  \msim{}  fpf-union(f;g;eq;R;x))


By

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Latex:
((UnivCD  THENA  Auto)  THEN  RepUR  ``fpf-ap  fpf-union-join``  0  THEN  Auto)

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