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 ⊢ θ ∧ χ ∧ ψ ∧ φ → τ
Assertion 4an4132 ⊢ φ ∧ ψ ∧ χ ∧ θ → τ

Proof

Step Hyp Ref Expression
1 4an4132.1 ⊢ θ ∧ χ ∧ ψ ∧ φ → τ
2 simpr ⊢ φ ∧ ψ ∧ χ ∧ θ → θ
3 simplr ⊢ φ ∧ ψ ∧ χ ∧ θ → χ
4 2 3 jca ⊢ φ ∧ ψ ∧ χ ∧ θ → θ ∧ χ
5 simpllr ⊢ φ ∧ ψ ∧ χ ∧ θ → ψ
6 simplll ⊢ φ ∧ ψ ∧ χ ∧ θ → φ
7 4 5 6 1 syl21anc ⊢ φ ∧ ψ ∧ χ ∧ θ → τ