The phrase "at this sum" is correct and usable in written English.
It can be used when referring to a specific total amount, often in financial or mathematical contexts.
Example: "The total cost of the project is $10,000, and at this sum, we can proceed with the next phase."
Alternatives: "at this amount" or "at this total".
Specifically, they often presented truth-maker challenges, or "anti-Razor" arguments (see Maurer 1984): If at one time this sum of boards and bricks is not a house and at another time it is a house, then there must be some thing that is absent at the former time and present at the later time.
I cannot recall exactly, but I suspect that we suggested that the member group these various services together and claim £245 as, at that time, this sum did not require receipts".
Companies are competing for a slice of the £73bn decommissioning market in the UK, with the clean-up of the sprawling Sellafield site representing at least half this sum.
At the time, this sum was equivalent to $500 million, but if the reais figure is converted at today's exchange rate, the cost comes in at $300 million.
Robin Speakman at Shore Capital said: This sum is a degree higher than we had anticipated, we had thought it would be closer to $1.2bn.
(The only unresolved case concerned one agent who had been sent to Marseilles with three million francs in his pocket and was unable to resist the temptation of betting this sum at Monte Carlo: it was never established whether he had won and was secretly living on the proceeds or whether he had lost and committed suicide).
We denote the restriction of this sum at τ = ε − 1 φ ( t ) as y ε N ( t ).
That would put 2001 share net in the vicinity of $13.50, and the stock trades at only 29 times this sum, or $389.
Due to the approximation made at this final step, this sum rate expression is not necessarily a lower bound but, as we will see, it closely follows both the lower bound and the true sum rate of the system.
