Step
*
of Lemma
lele_wf
∀[x,y,z:ℤ].  (x ≤ y ≤ z ∈ ℙ)
BY
{ Auto }
Latex:
Latex:
\mforall{}[x,y,z:\mBbbZ{}].    (x  \mleq{}  y  \mleq{}  z  \mmember{}  \mBbbP{})
By
Latex:
Auto
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