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Mirrors > Home > MPE Home > Th. List > pm5.74i | Structured version Visualization version GIF version |
Description: Distribution of implication over biconditional (inference rule). (Contributed by NM, 1-Aug-1994.) |
Ref | Expression |
---|---|
pm5.74i.1 | ⊢ (𝜑 → (𝜓 ↔ 𝜒)) |
Ref | Expression |
---|---|
pm5.74i | ⊢ ((𝜑 → 𝜓) ↔ (𝜑 → 𝜒)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | pm5.74i.1 | . 2 ⊢ (𝜑 → (𝜓 ↔ 𝜒)) | |
2 | pm5.74 258 | . 2 ⊢ ((𝜑 → (𝜓 ↔ 𝜒)) ↔ ((𝜑 → 𝜓) ↔ (𝜑 → 𝜒))) | |
3 | 1, 2 | mpbi 219 | 1 ⊢ ((𝜑 → 𝜓) ↔ (𝜑 → 𝜒)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 195 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 |
This theorem depends on definitions: df-bi 196 |
This theorem is referenced by: bitrd 267 imbi2i 325 bibi2d 331 ibib 356 ibibr 357 anclb 568 pm5.42 569 ancrb 571 cador 1538 equsalvw 1918 ax13b 1951 equsalhw 2109 equsal 2279 sbcom3 2399 2sb6rf 2440 ralbiia 2962 frinxp 5107 dfom2 6959 dfacacn 8846 kmlem8 8862 kmlem13 8867 kmlem14 8868 axgroth2 9526 bnj1171 30322 bnj1253 30339 filnetlem4 31546 bj-ssb1a 31821 bj-ssb1 31822 bj-ssbcom3lem 31839 bj-equsalv 31931 wl-sbcom3 32551 elintima 36964 |
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