# Production vs Rel - What's the difference?

production | rel |

## As a noun production

is the act of producing, making or creating something.

## As a preposition rel is

(mathematics) relative to.

# production

## English

### Noun

(en noun)
• The act of producing, making or creating something.
• The widget making machine is being used for production now.
• The act of bringing something forward, out etc. for use or consideration.
• * 1910 , , "The Lost Sanjak", Reginald in Russia :
• I tramped to a neighbouring market-town, and, late as the hour was, the production of a few shillings procured me supper and a night's lodging in a cheap coffee-house.
• the act of being produced
• The widgets are coming out of production now.
• the total amount produced
• They hope to increase spaghetti production next year.
• the presentation of a theatrical work
• We went to a production of Hamlet.
• an occasion or activity made more complicated than necessary
• He made a simple meal into a huge production .
• that which is manufactured or is ready for manufacturing in volume (as opposed to a prototype or conceptual model)
• This is the final production model.
• The act of lengthening out or prolonging.
• #### Derived terms

* production line

# rel

## English

### Preposition

(English prepositions)
• (mathematics) Relative to.
• * 1994 , N[ikita] Netsvetaev, "Diffeomorphism Criteria for Simply Connected Even-Dimensional Manifolds", in, Oleg Viro, editor, Topology of Manifolds and Varieties , Advances in Soviet Mathematics [series] 18, [publisher], ISBN 0821841246, page 237,
• Since $M_0$ and $M_1$ are cobordant rel boundary and $f_0, f_1$ are n -connected, the number $\delta:=\frac12\left(\mathrm\left\{rk\right\} H_nM_0-\mathrm\left\{rk\right\}H_nM_1\right)$ is a nonnnegative integer.
• * 1997 , Paul Selick, Introduction to Homotopy Theory , Fields Institute Monographs [series], [publisher], ISBN 0821806904, page 15,
• The following notations are in common use: $H:f\simeq g$ (rel A'') means that ''H'' is a homotopy rel ''A'' from ''f'' to ''g ....
• * 2002 , , Algebraic Topology ], [[w:Cambridge University Press, Cambridge], ISBN 0521795400, page 355,
• Then in $n\ge n\text{'}$, there is a map $h:Z\to Z\text{'}$ such that $h, A=g$ and $gf\simeq f\text{'}h$ rel' ''A'', so the diagram above is commutative up to homotopy '''rel ''A .

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