Theorem rcp-FALSERAA3 523

Description: Reductio ad Absurdum Using '⊥'.

Hypothesis

Ref	Expression
rcp-FALSERAA3.1	⊢ ((𝛾₁ ∧ 𝛾₂ ∧ ¬ 𝛾₃) → ⊥)

Assertion

Ref	Expression
rcp-FALSERAA3	⊢ ((𝛾₁ ∧ 𝛾₂) → 𝛾₃)

Proof of Theorem rcp-FALSERAA3

Step	Hyp	Ref	Expression
1		rcp-FALSERAA3.1	. . 3 ⊢ ((𝛾₁ ∧ 𝛾₂ ∧ ¬ 𝛾₃) → ⊥)
2	1	rcp-FALSENEGI3 435	. 2 ⊢ ((𝛾₁ ∧ 𝛾₂) → ¬ ¬ 𝛾₃)
3	2	dnege-P3.30 276	1 ⊢ ((𝛾₁ ∧ 𝛾₂) → 𝛾₃)

Syntax hints:  ¬ wff-neg 9   → wff-imp 10   ∧ wff-and 132  ⊥wff-false 157   ∧ wff-rcp-AND3 160

This theorem was proved from axioms:  ax-L1 11  ax-L2 12  ax-L3 13  ax-MP 14

This theorem depends on definitions:  df-bi-D2.1 107  df-and-D2.2 133  df-or-D2.3 145  df-true-D2.4 155  df-false-D2.5 158  df-rcp-AND3 161

This theorem is referenced by: (None)