Theorem sylg 1823

Description: A syllogism combined with generalization. Inference associated with sylgt 1822. General form of alrimih 1824. (Contributed by NM, 9-Jan-1993.) Extract from proof of alrimih 1824. (Revised by BJ, 4-Oct-2019.)

Hypotheses

Ref	Expression
sylg.1	⊢ (𝜑 → ∀𝑥𝜓)
sylg.2	⊢ (𝜓 → 𝜒)

Assertion

Ref	Expression
sylg	⊢ (𝜑 → ∀𝑥𝜒)

Proof of Theorem sylg

Step	Hyp	Ref	Expression
1		sylg.1	. 2 ⊢ (𝜑 → ∀𝑥𝜓)
2		sylg.2	. . 3 ⊢ (𝜓 → 𝜒)
3	2	alimi 1811	. 2 ⊢ (∀𝑥𝜓 → ∀𝑥𝜒)
4	1, 3	syl 17	1 ⊢ (𝜑 → ∀𝑥𝜒)

Syntax hints:   → wi 4  ∀wal 1538

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-gen 1795  ax-4 1809

This theorem is referenced by:  alrimih  1824  ax9ALT  2725  raleqbidvvOLD  3310  csbied  3901  rzal  4475  ssrel  5748  ssrelOLD  5749  kmlem1  10111  bnj1476  34844  bnj1533  34849  bj-alrimd  36615  bj-exlimd  36620  bj-ax12ig  36631  axc11n11  36677  bj-modalbe  36683  bj-modal4  36709  bj-wnfanf  36714  bj-wnfenf  36715  bj-19.12  36756  bj-pm11.53vw  36771  mpobi123f  38163  mptbi12f  38167  ismnushort  44297  setrec2mpt  49690