The apart, there are five distinct lines of thought in the matter of reconciling article 21 with article 19, namely, (1) if one loses his freedom by detention, he loses all the other attributes of freedom enshrined in article 19; (2) personal liberty in article 21 is the residue of personal liberty after excluding the attributes of that liberty embodied in article 19; (3) the personal liberty included in article 21 is wide enough to include some or all of the freedoms mentioned in article 19, but they are two distinct fundamental rights a law to be valid shall not infringe both the rights; (4) the expression "law" in article 21 means a valid law and, therefore, even if a person 's liberty is deprived by law of detention, the said law (1) ; (2) 708 shall not infringe article 19; and (5) article 21 applies to procedural law, whereas article 19 to substantive law relating to personal liberty.