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Equation 4 · Part 2 · How Verification Actually Works in a Claude Code Workflow

subscript

rBr_B
subscript

What this part means

The lower label selects a particular version, component, or indexed member of the quantity. For example, x₀ and xₜ can be values at different positions.

Its job in the formula

A subscript distinguishes a version, component, step, or member of a quantity. It does not automatically mean multiplication.

The passage around this formula

Say check A independently has recall rAr_A against a real defect — the fraction of the time it would catch that class of problem if it ran — and check B has recall rBr_B . If the two checks fail for unrelated reasons, the chance a defect slips past both is the product of the chances it slips past each:

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Learn the underlying idea

A subscript is a label attached below a symbol. It often selects a time step, component, category, or member of a sequence.

Open the illustrated subscripts: which member of a family? guide →

Sources cited in the article section

These citations provide research context; check each source for the exact claim it supports.