Theorem mpbi2and 952

Description: Detach a conjunction of truths in a biconditional. (Contributed by NM, 6-Nov-2011.) (Proof shortened by Wolf Lammen, 24-Nov-2012.)

Hypotheses

Ref	Expression
mpbi2and.1	⊢ (𝜑 → 𝜓)
mpbi2and.2	⊢ (𝜑 → 𝜒)
mpbi2and.3	⊢ (𝜑 → ((𝜓 ∧ 𝜒) ↔ 𝜃))

Assertion

Ref	Expression
mpbi2and	⊢ (𝜑 → 𝜃)

Proof of Theorem mpbi2and

Step	Hyp	Ref	Expression
1		mpbi2and.1	. . 3 ⊢ (𝜑 → 𝜓)
2		mpbi2and.2	. . 3 ⊢ (𝜑 → 𝜒)
3	1, 2	jca 306	. 2 ⊢ (𝜑 → (𝜓 ∧ 𝜒))
4		mpbi2and.3	. 2 ⊢ (𝜑 → ((𝜓 ∧ 𝜒) ↔ 𝜃))
5	3, 4	mpbid 147	1 ⊢ (𝜑 → 𝜃)

Syntax hints:   → wi 4   ∧ wa 104   ↔ wb 105

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

This theorem depends on definitions:  df-bi 117

This theorem is referenced by:  supisoti  7300  remim  11538  resqrtcl  11707  divalgmod  12606  oddpwdclemxy  12859  divnumden  12886  numdensq  12892  prmdivdiv  12927  4sqlem7  13075  ismgmid2  13582  mnd1  13657  iscmnd  14004  imasring  14197  subrg1  14365  topgele  14881  lmcn2  15132