Theorem com24 87

Description: Commutation of antecedents. Swap 2nd and 4th. (Contributed by NM, 25-Apr-1994.) (Proof shortened by Wolf Lammen, 28-Jul-2012.)

Hypothesis

Ref	Expression
com4.1	⊢ (𝜑 → (𝜓 → (𝜒 → (𝜃 → 𝜏))))

Assertion

Ref	Expression
com24	⊢ (𝜑 → (𝜃 → (𝜒 → (𝜓 → 𝜏))))

Proof of Theorem com24

Step	Hyp	Ref	Expression
1		com4.1	. . 3 ⊢ (𝜑 → (𝜓 → (𝜒 → (𝜃 → 𝜏))))
2	1	com4t 85	. 2 ⊢ (𝜒 → (𝜃 → (𝜑 → (𝜓 → 𝜏))))
3	2	com13 80	1 ⊢ (𝜑 → (𝜃 → (𝜒 → (𝜓 → 𝜏))))

Syntax hints:   → wi 4

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

This theorem is referenced by:  com25  91  tfrlem9  6418  nnmordi  6615  fundmen  6912  fiintim  7043  elfzodifsumelfzo  10352  ssfzo12  10375  swrdswrdlem  11180  swrdswrd  11181  wrd2ind  11199  dvdsmodexp  12181  dvdsaddre2b  12227  infpnlem1  12757  grpinveu  13445  mulgass2  13895  lss1d  14220  cnpnei  14766