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Step * of Lemma rng_when_of_zero

∀[r:Rng]. ∀[b:𝔹].  ((when b. 0) = 0 ∈ |r|)
BY
{ ProveSpecializedLemma `mon_when_of_id` 1 [parm{i};r↓+gp] (FoldC `rng_when` ANDTHENC AbReduceC) }

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Latex:

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Latex:
\mforall{}[r:Rng].  \mforall{}[b:\mBbbB{}].    ((when  b.  0)  =  0)


By

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Latex:
ProveSpecializedLemma  `mon\_when\_of\_id`  1  [parm\{i\};r\mdownarrow{}+gp]  (FoldC  `rng\_when`  ANDTHENC  AbReduceC)

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