[tishep, `=-`, %tshp](#tshp)
============================

Push on, inverse

`=-` is a synthetic rune that pushes `q` on the subject and sends it to
`p`. `=-` is the inverse of `=+`. Use `=-` when your computation, `q` is
lengthier and `=-` makes for more readable code.

See also
--------

[tislus, `=+`, %tsls](#tsls)
============================

Produces
--------

Twig: `[%tshp p=twig q=twig]`

Sample
------

`p` and `q` are [twig]()s.

Tall form
---------

    =-  p
        q

Wide form
---------

    =-(p q)

Irregular form
--------------

None

Examples
--------

    ~zod/try=> =-  [%a a]
                   [a=1]
    [%a 1]

In this simple example we push `[a=1]` on to our subject, and produce
`[%a a]` which pulls the value of `a` from the subject producing
`[%a 1]`.

    ~zod/try=> 
    =cor  |=  [a=@ b=@]
          =-  [[%a a] [%b b]]
          [a b]=[(add a 2) (add a b)]
    new var %cor
    ~zod/try=> (cor 2 4)
    [[%a 4] %b 6]

Here we create a gate `cor` that takes two atoms `a` and `b`. We use
`=-` to put the product of our computation first.