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# invariant

«invariant» in Mova's mysticism dictionary: **Something that stays the same whatever changes around it…** — its meaning for a pupil, its sense in the lessons and examples.

### part of speech

noun

### meaning for a pupil

Something that stays the same whatever changes around it; a rule a program must always keep true. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/mysticism/I/invariant/#m1)

### sense in the lessons

In the mystic school: In note 06 the debugger asks "Is the claimed invariant actually invariant?": does the promise stay true at the edge, under cost and temptation.

### examples

- Is the claimed invariant actually invariant? (note 06) [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/mysticism/I/invariant/#x1)
- He would not burn a soul without first writing down which invariant it was meant to check, and afterwards he filed a report. (note 06) [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/mysticism/I/invariant/#x2)
- The categories were valid, but the tester forgot the subject is not just a target; "verify the invariant" became "why are you still running this?" — he understood testing well and boundaries poorly. (lesson 014) [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/mysticism/I/invariant/#x3)

### note

A record of the mystic school, written from the notes.

### Trees and pragmatics

[Every meaning and example of «invariant» parsed by Mova](https://md.mova.elamur.ai/free/en/corpora/dictionaries/mysticism/I/invariant/), each sentence with its dependency tree and frames.