At: zero rank all vars12 1. L: Sequent List 2. eqS: {Sequent=} 3. eqF: {Formula=} 4. sL.((s) = 0) 5. hyp: Formula List 6. concl: Formula List 7. < hyp,concl > (eqS) L 8. z: Formula 9. z(eqF) concl
v:Var. z = v By: Using [`T',Sequent;`eq',eqS;`P',(s. (s) = 0);`z', < hyp,concl > ]
(FwdThru
Thm*eq:{T=}, P:(TProp), L:T List.
xL.P(x) (z:T. z(eq) L P(z))
[4]) Generated subgoal: