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Regress vs Pullback - What's the difference?

regress | pullback |

As nouns the difference between regress and pullback

is that regress is the act of passing back; passage back; return; retrogression while pullback is the act or result of pulling back; a withdrawal.

As a verb regress

is to move backwards to an earlier stage; to devolve.

regress

English

Noun

(-)
  • The act of passing back; passage back; return; retrogression.
  • * Frederic Harrison
    • Its bearing on the progress or regress of man is not an inconsiderable question.
  • The power or liberty of passing back.
  • * Shakespeare
    • Thou shalt have egress and regress;

    Derived terms

    * infinite regress

    Verb

    (es)
  • To move backwards to an earlier stage; to devolve.
  • (statistics) To perform a regression on an explanatory variable.
    • When we regress Y on X, we use the values of variable X to predict those Y.

    Synonyms

    * backslide

    Antonyms

    * proceed * progress

    Related terms

    * regression * regressive

    External links

    * * * ----

    pullback

    English

    (wikipedia pullback)

    Noun

    (en noun)
  • The act or result of pulling back; a withdrawal.
  • (film) The act of drawing a camera back to broaden the visible scene.
  • That which holds back, or causes to recede; a drawback; a hindrance.
  • (architecture) The iron hook fixed to a casement to pull it shut, or to hold it partly open at a fixed point.
  • (finance) A reduction in the price of a financial instrument after reaching a peak
  • (category theory) Given a pair of morphisms f:X\rightarrow Z and g: Y\rightarrow Z with a common codomain, Z'', their pullback is a pair of morphisms p_1:P\rightarrow X and p_2:P\rightarrow Y as well as their common domain, ''P'', such that the equation f\circ p_1 = g\circ p_2 is satisfied, and for which there is the ''universal property'' that for any other object ''Q for which there are also morphisms q_1: Q\rightarrow X, q_2: Q\rightarrow Y; there is a unique morphism u: Q\rightarrow P such that p_1\circ u = q_1 and p_2 \circ u = q_2.

    • Antonyms

    * (category theory) pushout (Webster 1913)