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Proof step 2 from proof div-div-pred-01 (previous step)

i < 0 ⊦ ((i - 3) / 4 - 1) / 2 = (i - 7) / 8

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 3:
⊦ i < 0 → ((i - 1) / 2 - 1) / 2 = (i - 3) / 4
Proof step 4:
i < 0, i < 0 ⊦ (((i - 1) / 2 - 1) / 2 - 1) / 2 = (i - 7) / 8

Rule argument

spec: int-div inst: name: div-div-pred seq: ⊦ i < 0 → ((i - 1) / 2 - 1) / 2 = (i - 3) / 4 subst: [i] → [i] flags: rewrite, current

Additional information

Used terms: i