In the 'symbolic' stage of mathematical notation history, comprehensive notational systems for formulas became the norm.
Notes on verification
Verbatim match with Wikipedia's Timeline of mathematics and an independent mirror; broader three-stage classification corroborated by peer-reviewed academic literature (Stallings, 2000). [tier=silver indep_score=0.925 clusters=2 claim_tier=everyday]
Sources
- Timeline of mathematics (wikipedia)
- https://onlinelibrary.wiley.com/doi/abs/10.1111/j.1949-8594.2000.tb17262.x (corroboration)
- https://handwiki.org/wiki/Timeline_of_mathematics (corroboration)