Necessary and Sufficient Conditions: If, or Only If? May 14, 2018 / Geometry, Logic / Words / By Dave Peterson. Sometimes in math, we trip over words, especially when they are used in ways that differ from everyday usage, or when the associated grammar is complicated.We use necessary cookies to make our site work (for example, to manage your session). We'd also like to use some non-essential cookies (including third-party cookies) to help us improve the site. By clicking 'Accept recommended settings' on this banner, you accept our use of optional cookies.Opinion Columnist. On Sunday, CNN's Dana Bash asked Representative Pramila Jayapal why so many progressive women have been silent about the extensive reports of widespread rape and sexual
If you say that something will happen if necessary, when necessary, or where necessary, you mean that it will happen if it is necessary, when it is necessary, or where it is necessary. If necessary, the airship can stay up there for days to keep out of danger.
Merriam-Webster unabridged. The meaning of IF NECESSARY is if it is needed. How to use if necessary in a sentence.
A rethink of support for families in the UK necessary, says report. The future is grim from the perspective of struggling British families, according to a new study by a team from Oxford's Department of Social Policy and Intervention led by Professor Mary Daly. Uncertainty and pessimism about the future emerged strongly from the research If needed - means you perform a given action IF you need to. When needed - means you perform an action WHEN you need to. Examples: If you continue to feel pain, take a painkiller when needed. Add more pepper to the food if needed. There isn't a big difference. See a translation. 1 like. branekalis. 17 Oct 2019. English (US)This event comes at a perfect time to discuss policies that could address challenges in unlocking the necessary private climate finance in emerging market and developing economies, also known as EMDEs. As the world's most populous continent, Asia is in a unique position. On the one hand, there are potential economic gains offered by tapping from English Grammar Today. We use if to introduce a possible or unreal situation or condition. We use when to refer to the time of a future situation or condition that we are certain of: You can only go in if you've got your ticket. When I'm older, I'd love to be a dancer. Compare.
The phrase " if need be " is a fixed phrase and I'd use it to mean " if necessary " or " if needed ". For the purposes of the letter you're describing, it seems to me that you should stick with saying " if necessary " or " if needed ". Those phrases are quite standard and I see no reason not to use them in a formal letter.
/ˈnesəsəri/ /ˈnesəseri/ Idioms. that is needed for a purpose or a reason synonym essential. necessary to do something It may be necessary to buy a new one. necessary for somebody to do something It doesn't seem necessary for us to meet. necessary for something Food is necessary for survival. I'll make the necessary arrangements.I4UiKrL.
