(42steps) PrintForm Definitions formula equality Sections ClassicalProps(jlc) Doc

At: discrete Formula 1 2 1
1. Q: FormulaProp
2. x:{x:Formula| Q(x) }, y:Formula. Dec(x = y)
3. x: Formula
4. Q(x)
5. y@0: Formula

Dec(x = y@0)
By: let Solver FalseCase THEN FormulaEquality -1 in FormulaCases -1 THENL [Solver;Id;Solver;Solver;Solver]
Generated subgoal:

16. x1: Formula
Dec(x = x1)

About:
decidablesetapplyfunctionequalpropall

(42steps) PrintForm Definitions formula equality Sections ClassicalProps(jlc) Doc