Exercise logic.propositional.consequence

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

Feedback

• onefirst
• allfirsts (3)
• 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, 0, 3, 0, 0, 2, 0, 0, 3, 3]
steps	11
major rules	2
active labels	consequence cnf eliminateimplequiv

enter consequence, initial, conj-intro, navigator.down, navigator.down, enter cnf, check, navigator.down, check, enter eliminateimplequiv, logic.propositional.defequiv