Exercise

Exercise logic.propositional.consequence

Description
Prove that formula is a logical consequence of a set of formulas

p <-> r, q <-> s => (((p /\ q /\ r /\ s) || ~p || ~q) /\ p /\ q /\ r /\ s) || (((p /\ q /\ r /\ s) || ~(p /\ q)) /\ ~(r /\ s))

ready: no

Feedback

onefirst
allfirsts (10)
allapplications
derivation
microsteps

Environment

initial=TList [TCon logic1.equivalent [TVar "p",TVar "r"],TCon logic1.equivalent [TVar "q",TVar "s"]]

Path 1

path [0, 0, 4, 0, 0, 1, 4, 4, 5, 3]
steps 10
major rules 1
active labels
consequence
cnf
demorgan

enter consequence, initial, navigator.down, navigator.down, enter cnf, check, enter demorgan, navigator.down, navigator.right, logic.propositional.demorganand

path	[0, 0, 4, 0, 0, 1, 4, 4, 5, 3]
steps	10
major rules	1
active labels	consequence cnf demorgan