pm4.62dc - Intuitionistic Logic Explorer

	Intuitionistic Logic Explorer		< Previous Next > Nearby theorems
Mirrors > Home > ILE Home > Th. List > pm4.62dc		Unicode version

Theorem pm4.62dc 834

Description: Implication in terms of disjunction. Like Theorem *4.62 of [WhiteheadRussell] p. 120, but for a decidable antecedent. (Contributed by Jim Kingdon, 21-Apr-2018.)

**Assertion**
Ref	Expression
pm4.62dc	DECID $\/$

**Proof of Theorem pm4.62dc**
Step	Hyp	Ref	Expression
1		imordc 832	1 DECID $\/$

Colors of variables: wff set class

Syntax hints:

wn 3

wi 4

wb 103 $\/$ wo 662 DECID wdc 778

This theorem was proved from axioms: ax-1 5 ax-2 6 ax-mp 7 ax-ia1 104 ax-ia2 105 ax-ia3 106 ax-in1 577 ax-in2 578 ax-io 663

This theorem depends on definitions: df-bi 115 df-dc 779

This theorem is referenced by: ianordc 835

W3C validator