by t we have t (id) and t (id)
- Synopsis:
by term we have term
( id ) and term
( id )
- Pre-condition:
t must be an logical type,type and
- Action:
It proceeds on the values of t, according to the elimination principle
- New sequence to prove:
It opens one new sequent, the names of the new hypotheses are picked by t(id) and t(id)