Step
*
of Lemma
es-le-before-partition2
∀[es:EO]. ∀[e,a:E]. (≤loc(e) = (≤loc(pred(a)) @ [a, e]) ∈ (E List)) supposing ((¬↑first(a)) and a ≤loc e )
BY
{ (InstLemma `es-le-before-partition` []
THEN RepeatFor 4 (ParallelLast')
THEN Auto
THEN HypSubst' -2 0
THEN Auto
THEN EqCD
THEN Auto) }
Latex:
\mforall{}[es:EO]. \mforall{}[e,a:E]. (\mleq{}loc(e) = (\mleq{}loc(pred(a)) @ [a, e])) supposing ((\mneg{}\muparrow{}first(a)) and a \mleq{}loc e )
By
(InstLemma `es-le-before-partition` []
THEN RepeatFor 4 (ParallelLast')
THEN Auto
THEN HypSubst' -2 0
THEN Auto
THEN EqCD
THEN Auto)
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