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

At: discrete Formula 1 2 1 1 2
1. Q: FormulaProp
2. x:{x:Formula| Q(x) }, y:Formula. Dec(x = y)
3. x: Formula
4. Q(x)
5. y@0: Formula
6. x1: Formula
7. x = x1

Dec(x = x1)
By:
FalseCase
THEN
Analyze -2
Generated subgoal:

14. Q(x)
5. y@0: Formula
6. x1: Formula
7. x = x1
x = x1

About:
decidablesetapplyfunctionequalpropall

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