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| Mirrors > Home > MPE Home > Th. List > sbimi | Structured version Visualization version GIF version | ||
| Description: Distribute substitution over implication. (Contributed by NM, 25-Jun-1998.) Revise df-sb 2094. (Revised by BJ, 22-Dec-2020.) (Proof shortened by Steven Nguyen, 24-Jul-2023.) |
| Ref | Expression |
|---|---|
| sbimi.1 | ⊢ (𝜑 → 𝜓) |
| Ref | Expression |
|---|---|
| sbimi | ⊢ ([𝑡 / 𝑥]𝜑 → [𝑡 / 𝑥]𝜓) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | sbimi.1 | . . 3 ⊢ (𝜑 → 𝜓) | |
| 2 | 1 | sbt 2098 | . 2 ⊢ [𝑡 / 𝑥](𝜑 → 𝜓) |
| 3 | sbi1 2106 | . 2 ⊢ ([𝑡 / 𝑥](𝜑 → 𝜓) → ([𝑡 / 𝑥]𝜑 → [𝑡 / 𝑥]𝜓)) | |
| 4 | 2, 3 | ax-mp 5 | 1 ⊢ ([𝑡 / 𝑥]𝜑 → [𝑡 / 𝑥]𝜓) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 [wsb 2093 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1818 ax-4 1832 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-sb 2094 |
| This theorem is referenced by: sb2imi 2111 sbbii 2112 sban 2116 sbrimvw 2127 hbsbw 2208 sb4av 2282 sbi2 2339 hbsb3 2521 sb6f 2531 sbie 2536 2mo 2678 sbhypf 3516 elrabi 3649 fmptdF 32913 funcnv4mpt 32925 disjdsct 32960 measiuns 34524 ballotlemodife 34805 subsym1 36800 bj-hbsb3v 37312 bj-sbidmOLD 37347 mptsnunlem 37844 sbor2 42841 |
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