Let x0 of type ο be given.
Let x1 of type ο be given.
Let x2 of type ο be given.
Let x3 of type ο be given.
Let x4 of type ο be given.
Let x5 of type ο be given.
Let x6 of type ο be given.
Assume H0: x0.
Assume H1: x1.
Assume H2: x2.
Assume H3: x3.
Assume H4: x4.
Assume H5: x5.
Assume H6: x6.
Apply andI with
and (and (and (and (and x0 x1) x2) x3) x4) x5,
x6 leaving 2 subgoals.
Apply and6I with
x0,
x1,
x2,
x3,
x4,
x5 leaving 6 subgoals.
The subproof is completed by applying H0.
The subproof is completed by applying H1.
The subproof is completed by applying H2.
The subproof is completed by applying H3.
The subproof is completed by applying H4.
The subproof is completed by applying H5.
The subproof is completed by applying H6.