The hypothesis of substitutional symmetry is thus completely confirmed.
Of great importance is the substitutional adequacy of images.
The elements, in substitutional symmetry, are then simply means of introducing variety and action.
early 15c. in transitive sense, 1888 as intransitive, from Latin substitutus, past participle of substituere (see substitution). Related: Substituted; substituting.
"one who acts in place of another," early 15c., from Old French substitute and directly from Latin substitutus, past participle of substituere (see substitution). Team sports sense is from 1849.