24 The lessee's contention, however, raises its own inconsistencies and difficulties. First, cl 12.05 gives to the lessor upon notice the right to treat the default as a "fundamental breach of the lease". The legal consequence of this is that the lessor, as innocent party, might elect to put an end to the lease by notice or other act. But the clause immediately withdraws that consequence by requiring the lessor to forfeit by re-entry. Second, if the lessor might move to forfeiture for non-payment of rent only by cl 12.05, this is inconsistent with the terms of cl 12.01 which gives the lessor a right "at any time or times thereafter" to re-enter because there is a further pre-condition to the right of re-entry, namely, the giving of a cl 12.05 notice. There are, also, one and perhaps two conceptual inconsistencies. The event which triggers cl 12.01 is not a breach of a covenant, but the fact that rent is in arrears; that which triggers cl 12.05 is the default of the lessee in respect of its contractual obligation to pay rent. Furthermore, if the cl 12.05 notice amounts to an acceptance of the lessee's breach of a fundamental term so that it brings the lease to an end, the right of re-entry conferred by cl 12.01 is superfluous.