(13steps total) PrintForm Definitions Lemmas ElisTarskiPf A Sections NuprlLIB Doc

At: Tarski 1 1 1 2 1 1
1. Tr: TermProp
2. tr: Term
3. L: TermProp
4. RespectsNot(Tr; L)
5. S: Term
6. S = s(NOT(tr))
7. S = NOT(SUBX(tr; S))
8. L(SUBX(tr; S))
9. Tr(SUBX(tr; S)) Tr(NOT(SUBX(tr; S)))
False
By:
Unfold `RespectsNot` 4
THEN
InstHyp [SUBX(tr; S)] 4
THEN
Thin 4
Generated subgoal:

14. S: Term
5. S = s(NOT(tr))
6. S = NOT(SUBX(tr; S))
7. L(SUBX(tr; S))
8. Tr(SUBX(tr; S)) Tr(NOT(SUBX(tr; S)))
9. Tr(NOT(SUBX(tr; S))) L(SUBX(tr; S)) & Tr(SUBX(tr; S))
False		3 steps

About:
applyfunctionequalpropfalse

(13steps total) PrintForm Definitions Lemmas ElisTarskiPf A Sections NuprlLIB Doc