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Proof step 898 from proof bitsand-cast (previous step)

# bits1 = n + # bits0, # bits0 < # bits1, # bits0 < # bits2 + # bits1, bits0.first ⊦ n = 0, bits0 = [], bits2 + bits1 = [], bits1 = [], mklist(true, n) + bits0 = lastn(# bits1, mklist(true, n) + bits0), false ∈ bits1

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 899:
⊦ n = # bits → lastn(n, bits) = bits

Rule argument

seq: ⊦ n = # bits → lastn(n, bits) = bits subst: [bits, n] → [mklist(true, n) + bits0, # bits1] rotate: F spec: list-del inst: bitlista name: lastN-all

Additional information

Used simplifier rules: ⊦ #(bits + bits0) = # bits + # bits0;% ⊦ # mklist(boolvar, n) = n;% ⊦ (bits + bits0) + bits1 = bits + bits0 + bits1; Used terms: mklist(true, n) + bits0, # bits1