Theorem
imp42
An importation inference. (Contributed by NM, 26-Apr-1994.)
Hypothesis
imp4.1
\( \vdash \varphi \rightarrow \psi \rightarrow \chi \rightarrow \theta \rightarrow \tau \)
Conclusion
\( \vdash \varphi \wedge (\psi \wedge \chi) \wedge \theta \rightarrow \tau \)
Proof
imp4.1
imp32
_
imp
_
This is the content in the right pane.