Theorem simpr3l 1319

Description: Simplification of conjunction. (Contributed by NM, 9-Mar-2012.) (Proof shortened by Wolf Lammen, 24-Jun-2022.)

Assertion

Ref	Expression
simpr3l	⊢ ((𝜏 ∧ (𝜒 ∧ 𝜃 ∧ (𝜑 ∧ 𝜓))) → 𝜑)

Proof of Theorem simpr3l

Step	Hyp	Ref	Expression
1		simprl 789	. 2 ⊢ ((𝜏 ∧ (𝜑 ∧ 𝜓)) → 𝜑)
2	1	3ad2antr3 1247	1 ⊢ ((𝜏 ∧ (𝜒 ∧ 𝜃 ∧ (𝜑 ∧ 𝜓))) → 𝜑)

Syntax hints:   → wi 4   ∧ wa 386   ∧ w3a 1113

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8

This theorem depends on definitions:  df-bi 199  df-an 387  df-3an 1115

This theorem is referenced by:  ax5seg  26237  axcont  26275  nosupbnd1lem5  32397  segconeq  32656  idinside  32730  btwnconn1lem10  32742  segletr  32760  cdlemc3  36268  cdlemc4  36269  cdleme1  36302  cdleme2  36303  cdleme3b  36304  cdleme3c  36305  cdleme3e  36307  cdleme27a  36442  stoweidlem56  41067