Description: in2 without virtual deductions. (Contributed by Alan Sare, 20-Jun-2011) (Proof modification is discouraged.) (New usage is discouraged.)
Ref | Expression | ||
---|---|---|---|
Hypothesis | iin2.1 | |- ( ph -> ( ps -> ch ) ) |
|
Assertion | iin2 | |- ( ph -> ( ps -> ch ) ) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | iin2.1 | |- ( ph -> ( ps -> ch ) ) |