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going

In commutative algebra, a branch of mathematics, going up and going down are terms which refer to certain properties of chains of prime ideals in integral extensions.
The phrase going up refers to the case when a chain can be extended by "upward inclusion", while going down refers to the case when a chain can be extended by "downward inclusion".
The major results are the Cohen–Seidenberg theorems, which were proved by Irvin S. Cohen and Abraham Seidenberg. These are known as the going-up and going-down theorems.

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  1. W

    shower pump advice

    Hi, I just need some advice regarding a shower pump I am thinking of getting fitted. It will need to be a negative head pump as my shower will be in the loft. Does the cold feed for the pump need its own supply? As the tank is on the opposite side of the house and the floor is laminated etc...
  2. J

    going old school

    was fitting a gas fire today. and the lady was having a clear out. 2 boxes of scalextrix she was carting outside to the skip. ooooh if your throwing them out can i have them. so in the van they go. me and son have spent last 2 hours faffing around with the track and cobbling 2 cars together with...
  3. R

    Shower going cold help

    Hi Went to a job today where the lady said the shower coming off her bath taps goes very hot or freezing cold. The taps are brand new as is the shower hose and head, she has a combi boiler. I ran the shower and didn't notice the change. Under the bath is like a spaghetti junction, way too...
  4. E

    Please help me with employer holding my wages

    Hi all i wont go into too much detail. Basically i worked for this guy direct not through an agency for a month, i was on fortnight pay with a fortnight in hand. I left early a few times and had them on my back. On a Friday the supervisor asked 2 of us to come in on Saturday and told us job and...
  5. W

    What's likely going on here?

    House where boiler was removed, electirc rads put in. CWSC and cylinder remain. After about 6 months of no issues a 22mm pipe with open end (one of two) in alcove on ground floor where boiler once stood (so presumably flow and return) started dripping a drip every minute or so. Does so day and...
  6. G

    What's going on in the forum?

    Newcastle phill is banned, whyme wants out, on31ll is back or was.... cant we we all just get along? In a place populated with intelligent minds there are times where we need to agree to disagree. And swiftly move on. we all have bad days but on the whole were all good lads and if you really...
  7. M

    Looking at leaving and going self employed.

    Hi and thanks for having me. Im 24, been doing 'this' since I left school.. Im Gas safe, oftec, part p, biomass boilers with hetas, unvented, solid fuel flue systems. I think thats it..! Ive been with a company for 5 years from when I started which has been good but theyve moved into a...
  8. L

    going anywhere this xmas ?

    https://www.************/video.php?v=10151771000782709 watch it all pmsl its all true
  9. P

    EMWC Scale Eliminator 54

    thinking of purchasing/installing this scale eliminator (EMWC Scale Eliminator 54) as appose to water softner or scale remover. it is going to be fitted in a completely new system (600lt megaflo + 2 x 450lt accumulator) don't like the feel of the softened water or the on-going maintenance/ salt...
  10. T

    Help holiday not going to plan

    Hi guys long shot but getting desperate. We've come to Dawlish in Devon on holiday, let's just say the holiday park is run down and other unwelcoming things have happened and we are now leaving, there are 3 families 13 people in total. Does anyone know of any form of accomodation weather...
  11. P

    anyone going to ideal boilers leeds today?

    anyone in leeds for the logic/logic+ fault finding course?
  12. S

    Vaillant robbing business

    Wondering if any of you have experienced this? we have fitted around 70 vaillants in the last 2 years and they ask the question when you call to register "will you be carting out future servicing" we we always say yes so as far as I am concerned that means Vaillant shouldn't be sending my...
  13. M

    Fitting shower tray on floor boards

    Hey if fitting a shower tray on sand and cement is it ok to fit it straight on to the floor boards? As long as there isn't much movement in the floorboards.
  14. V

    Not Seen That Before

    I was round at a customer's place today looking at a number of small jobs they need doing. Nothing too difficult, mostly little things caused by lazy plumbers/DIYers in the past. Then he asked me to look at the bath that he wants replumbing. I walk into what initially looks like a brand new...
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