Metamath Proof Explorer


Theorem 4an4132

Description: A rearrangement of conjuncts for a 4-right-nested conjunction. (Contributed by Alan Sare, 30-May-2018)

Ref Expression
Hypothesis 4an4132.1 θχψφτ
Assertion 4an4132 φψχθτ

Proof

Step Hyp Ref Expression
1 4an4132.1 θχψφτ
2 simpr φψχθθ
3 simplr φψχθχ
4 2 3 jca φψχθθχ
5 simpllr φψχθψ
6 simplll φψχθφ
7 4 5 6 1 syl21anc φψχθτ