person · P0492
Rav Yitzchak bar Yosef רב יצחק בר יוסף
Traveler of the fourth generation who carried Eretz Yisrael rulings to Bavel — the Bavli introduces him with כי אתא רב יצחק בר יוסף — transmitting Rabbi Yochanan. No verified source names his own teacher, so he carries no reception edge here.
I. Who
- Hebrew
- רב יצחק בר יוסף
- Era
- amoraim
- Generation
- A4
II. When
- Traditional
- fl. c. 4030–4100 AM (schematic)
- Academic
- c. 270–340 CE
- Lifespan (traditional)
- ≈75 years
- Precision
- approximate
V. How do we know
| Claim | Evidence | Confidence | Sources |
|---|---|---|---|
| The chain אמר רב יצחק בר יוסף אמר רבי יוחנן appears 14 times across the Bavli in this atlas's mining — every chain of his. | rabbinic | ★★★★★ | |
| No source dates Rav Yitzchak bar Yosef directly; the AM span shown is a schematic reconstruction anchored to the generation after Rabbi Yochanan, whose rulings he ferried.
Schematic generational placement, not an attested date. A dated attestation, if one can be verified, should supersede this.
|
reconstruction | ★★☆☆☆ |