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NOT.3:3 - Forces
| Force | What must be reconciled |
| Meaning and obtaining | An expression can denote a result that the available reader cannot compute or recognize. |
| Local rules and whole expression | A reading of each component must account for their composition and context. |
| Useful tacit skill and recoverable preparation | A trained perceptual or manipulative operation can be efficient but unavailable to another reader. |
| Several reading routes and one required consequence | Different routes can expose different structure or cost different effort while agreeing on the intended answer. |
| Represented condition and actual occurrence | A model can imply a result without establishing that the described situation obtained. |