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Proof step 2 from proof fill-rec-one (previous step)

⊦ fillsgn(n, boolvar ') = mklist(boolvar, n), n = 0

User applied rule insert lemma

And obtained the following new goals

Proof step 3:
⊦ # bits < n → fillsgn(n, boolvar ' + bits) = mklist(boolvar, n - # bits) + bits
Proof step 4:
# [] < n → fillsgn(n, boolvar ' + []) = mklist(boolvar, n - # []) + [] ⊦ fillsgn(n, boolvar ') = mklist(boolvar, n), n = 0

Rule argument

name: fillsgn-fill subst: [bits, n, boolvar] → [[], n, boolvar]

Additional information

Used terms: [], n, boolvar