Theorem 3pm3.2i 1201

Description: Infer conjunction of premises. (Contributed by NM, 10-Feb-1995.)

Hypotheses

Ref	Expression
3pm3.2i.1	⊢ 𝜑
3pm3.2i.2	⊢ 𝜓
3pm3.2i.3	⊢ 𝜒

Assertion

Ref	Expression
3pm3.2i	⊢ (𝜑 ∧ 𝜓 ∧ 𝜒)

Proof of Theorem 3pm3.2i

Step	Hyp	Ref	Expression
1		3pm3.2i.1	. . 3 ⊢ 𝜑
2		3pm3.2i.2	. . 3 ⊢ 𝜓
3	1, 2	pm3.2i 272	. 2 ⊢ (𝜑 ∧ 𝜓)
4		3pm3.2i.3	. 2 ⊢ 𝜒
5		df-3an 1006	. 2 ⊢ ((𝜑 ∧ 𝜓 ∧ 𝜒) ↔ ((𝜑 ∧ 𝜓) ∧ 𝜒))
6	3, 4, 5	mpbir2an 950	1 ⊢ (𝜑 ∧ 𝜓 ∧ 𝜒)

Syntax hints:   ∧ wa 104   ∧ w3a 1004

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 depends on definitions:  df-bi 117  df-3an 1006

This theorem is referenced by:  mpbir3an  1205  3jaoi  1339  ftp  5839  4bc2eq6  11037  halfleoddlt  12457  strleun  13189  strle1g  13191  slotstnscsi  13280  slotsdnscsi  13308  slotsdifunifndx  13317  2irrexpqap  15705  lgslem2  15733  lgsdir2lem2  15761  lgsdir2lem3  15762  usgrexmpldifpr  16103  0grsubgr  16118  ex-dvds  16343  nconstwlpolem0  16688