let H1, H2 be CTL-formula; for S being non empty set
for R being total Relation of S,S
for s being Element of S
for BASSIGN being non empty Subset of (ModelSP S)
for kai being Function of atomic_WFF ,the BasicAssign of (CTLModel R,BASSIGN) holds
( s,kai |= H1 'or' H2 iff ( s,kai |= H1 or s,kai |= H2 ) )
let S be non empty set ; for R being total Relation of S,S
for s being Element of S
for BASSIGN being non empty Subset of (ModelSP S)
for kai being Function of atomic_WFF ,the BasicAssign of (CTLModel R,BASSIGN) holds
( s,kai |= H1 'or' H2 iff ( s,kai |= H1 or s,kai |= H2 ) )
let R be total Relation of S,S; for s being Element of S
for BASSIGN being non empty Subset of (ModelSP S)
for kai being Function of atomic_WFF ,the BasicAssign of (CTLModel R,BASSIGN) holds
( s,kai |= H1 'or' H2 iff ( s,kai |= H1 or s,kai |= H2 ) )
let s be Element of S; for BASSIGN being non empty Subset of (ModelSP S)
for kai being Function of atomic_WFF ,the BasicAssign of (CTLModel R,BASSIGN) holds
( s,kai |= H1 'or' H2 iff ( s,kai |= H1 or s,kai |= H2 ) )
let BASSIGN be non empty Subset of (ModelSP S); for kai being Function of atomic_WFF ,the BasicAssign of (CTLModel R,BASSIGN) holds
( s,kai |= H1 'or' H2 iff ( s,kai |= H1 or s,kai |= H2 ) )
let kai be Function of atomic_WFF ,the BasicAssign of (CTLModel R,BASSIGN); ( s,kai |= H1 'or' H2 iff ( s,kai |= H1 or s,kai |= H2 ) )
( s,kai |= H1 'or' H2 iff s |= Evaluate (H1 'or' H2),kai )
by Def60;
then
( s,kai |= H1 'or' H2 iff s |= (Evaluate H1,kai) 'or' (Evaluate H2,kai) )
by Th10;
then
( s,kai |= H1 'or' H2 iff ( s |= Evaluate H1,kai or s |= Evaluate H2,kai ) )
by Th17;
hence
( s,kai |= H1 'or' H2 iff ( s,kai |= H1 or s,kai |= H2 ) )
by Def60; verum