Theorem ancld 323

Description: Deduction conjoining antecedent to left of consequent in nested implication. (Contributed by NM, 15-Aug-1994.) (Proof shortened by Wolf Lammen, 1-Nov-2012.)

Hypothesis

Ref	Expression
ancld.1	⊢ (𝜑 → (𝜓 → 𝜒))

Assertion

Ref	Expression
ancld	⊢ (𝜑 → (𝜓 → (𝜓 ∧ 𝜒)))

Proof of Theorem ancld

Step	Hyp	Ref	Expression
1		idd 21	. 2 ⊢ (𝜑 → (𝜓 → 𝜓))
2		ancld.1	. 2 ⊢ (𝜑 → (𝜓 → 𝜒))
3	1, 2	jcad 305	1 ⊢ (𝜑 → (𝜓 → (𝜓 ∧ 𝜒)))

Syntax hints:   → wi 4   ∧ wa 103

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

This theorem is referenced by:  mopick2  2102  cgsexg  2765  cgsex2g  2766  cgsex4g  2767  reximdva0m  3429  difsn  3715  preq12b  3755  elres  4925  relssres  4927  fnoprabg  5951  1idprl  7539  1idpru  7540  msqge0  8522  mulge0  8525  fzospliti  10119  algcvga  11992  prmind2  12061  sqrt2irr  12103  metrest  13221  2sqlem10  13676