In Jain Dharma, the question “how many times does samyaktva arise and get lost in one human life (say 100 years)?” does not have a fixed numeric answer in the scriptures.

Let’s separate the three:

1. Kṣāyik Samyaktva (क्षायिक सम्यक्त्व)

• This is samyaktva gained by complete destruction of darśan-mohanīya karmas.
• Once kṣāyik samyaktva arises, it never ends.

It continues till moksha.

• So, in all lives put together, kṣāyik samyaktva can arise only once for a soul.

In that very life (or a later one) the soul goes on to keval-jnān and then moksha.

• Therefore:

- In a 100-year human life: - It may not arise at all, or - If it does arise, it will not be lost again in that life or any later life.

2. Upśham (Aupashamik) Samyaktva (उपशम / औपशमिक सम्यक्त्व)

• This is samyaktva due to temporary suppression of the deluding karmas.
• It definitely has an end; when its time is over, samyaktva is lost and the soul falls from the 4th guṇasthān.
• The āgamas and tattva-granthas describe:

- minimum duration: less than one muhūrta (less than 48 minutes), - maximum: can be long, but still finite; it must end.

• How many times in one life?

- The scriptures do not give a fixed count like “3 times” or “10 times” per life. - In principle, depending on one’s mohaniya karma: - a soul may never get upśham samyaktva in that life, - or may get it once, - or more than once (lose it and regain right faith again). - Practically, Jain ācāryas stress that samyaktva is extremely rare and its fall is a great spiritual disaster, so repeated gaining and losing in one short human life is treated as theoretically possible, but not normal or routine.

3. Kṣayopśhamik Samyaktva (क्षयोपशमिक सम्यक्त्व)

• This arises from a mixed state: some deluding karmas are destroyed, some are only suppressed.
• Like upśham samyaktva, it also has an end; it is not eternal.
• When its fruition changes, one can:

- fall back to mithyātva / lower guṇasthāns, or - progress onward to kṣāyik samyaktva.

• Number of times in one life?

- Again, no fixed number is given in the scriptures. - It may: - not arise at all, - arise once and then be lost, - or arise, be lost, and possibly arise again – all according to karmic conditions.

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Direct answer to your question

For a single human life of 100 years:

1. Kṣāyik Samyaktva

- Either it does not arise. - Or, if it does arise, it arises once and is never lost (not even in future lives).

1. Upśham Samyaktva and Kṣayopśhamik Samyaktva

- The āgamas do not state a fixed “how many times per life”. - They only state: - they have a beginning and an end, - their duration can be very short or comparatively long, - and after ending, one can fall and, with suitable karma, regain right faith. - So: - In one 100‑year human life, they can occur zero times, once, or more than once — it is entirely karma-dependent, not time‑length dependent.

So, Jain Dharma does not fix a specific count of how many times in one human life these three types of samyaktva will arise and subside. Only one thing is fixed: kṣāyik samyaktva, once attained, is never lost again.