Theorem adantrrr 487

Description: Deduction adding a conjunct to antecedent. (Contributed by NM, 26-Dec-2004.) (Proof shortened by Wolf Lammen, 4-Dec-2012.)

Hypothesis

Ref	Expression
adantr2.1	⊢ ((𝜑 ∧ (𝜓 ∧ 𝜒)) → 𝜃)

Assertion

Ref	Expression
adantrrr	⊢ ((𝜑 ∧ (𝜓 ∧ (𝜒 ∧ 𝜏))) → 𝜃)

Proof of Theorem adantrrr

Step	Hyp	Ref	Expression
1		simpl 109	. 2 ⊢ ((𝜒 ∧ 𝜏) → 𝜒)
2		adantr2.1	. 2 ⊢ ((𝜑 ∧ (𝜓 ∧ 𝜒)) → 𝜃)
3	1, 2	sylanr2 405	1 ⊢ ((𝜑 ∧ (𝜓 ∧ (𝜒 ∧ 𝜏))) → 𝜃)

Syntax hints:   → wi 4   ∧ wa 104

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108

This theorem is referenced by:  2ndconst  6280  genpdisj  7590  ltexprlemdisj  7673  addsrmo  7810  mulsrmo  7811  axpre-suploclemres  7968  lemul12b  8888  tgcl  14300  neissex  14401