| wlar[m] = wl-entry(m2, stat1), wlar[n0] = wl-entry(m1, stat0), wlar[m, wl-entry(m0, stat)][n0] = wl-entry(m3, stat2), n0 < # wlar, m < # wlar, m ≤ n0, ∀ wlar, m, wle. n0 ≤ # wlar → ecs(wlar[m, wle], n0) = (m < n0 ⊃ (ecs(wlar, n0) -- wlar[m].ec) ++ wle.ec;ecs(wlar, n0)) ⊦ ecs(wlar[m, wl-entry(m0, stat)], n0) ++ m3 = (ecs(wlar, n0) -- m2) ++ m1 ++ m0, m1 = m2 |
wlar[m, wl-entry(m0, stat)][n0] = wl-entry(m3, stat2), wlar[n0] = wl-entry(m1, stat0), wlar[m] = wl-entry(m2, stat1), m < # wlar, n0 < # wlar, m ≤ n0, ∀ wlar, m, wle. n0 ≤ # wlar → ecs(wlar[m, wle], n0) = (m < n0 ⊃ (ecs(wlar, n0) -- wlar[m].ec) ++ wle.ec;ecs(wlar, n0)) ⊦ ecs(wlar[m, wl-entry(m0, stat)], n0) ++ m3 = (ecs(wlar, n0) -- m2) ++ m1 ++ m0, m1 = m2, n0 = m
Used simplifier rules: ⊦ m < # wlar → wlar[m, wle][m] = wle; (s)% ⊦ wl-entry(m, stat) = wl-entry(m0, stat0) ↔ m = m0 ∧ stat = stat0; (ws)% ⊦ m ≤ m; (s) Used formulas: n0 = m