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Mirrors > Home > ILE Home > Th. List > impexp | GIF version |
Description: Import-export theorem. Part of Theorem *4.87 of [WhiteheadRussell] p. 122. (Contributed by NM, 5-Aug-1993.) (Proof shortened by Wolf Lammen, 24-Mar-2013.) |
Ref | Expression |
---|---|
impexp | ⊢ (((𝜑 ∧ 𝜓) → 𝜒) ↔ (𝜑 → (𝜓 → 𝜒))) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | pm3.3 259 | . 2 ⊢ (((𝜑 ∧ 𝜓) → 𝜒) → (𝜑 → (𝜓 → 𝜒))) | |
2 | pm3.31 260 | . 2 ⊢ ((𝜑 → (𝜓 → 𝜒)) → ((𝜑 ∧ 𝜓) → 𝜒)) | |
3 | 1, 2 | impbii 125 | 1 ⊢ (((𝜑 ∧ 𝜓) → 𝜒) ↔ (𝜑 → (𝜓 → 𝜒))) |
Colors of variables: wff set class |
Syntax hints: → wi 4 ∧ wa 103 ↔ wb 104 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 |
This theorem depends on definitions: df-bi 116 |
This theorem is referenced by: imp4a 346 exp4a 363 imdistan 440 pm5.3 466 pm4.87 546 nan 681 pm4.14dc 875 pm5.6dc 911 2sb6 1959 2sb6rf 1965 2exsb 1984 mor 2041 eu2 2043 moanim 2073 r2alf 2452 r3al 2477 r19.23t 2539 ceqsralt 2713 rspc2gv 2801 ralrab 2845 ralrab2 2849 euind 2871 reu2 2872 reu3 2874 rmo4 2877 rmo3f 2881 reuind 2889 rmo2ilem 2998 rmo3 3000 ralss 3163 rabss 3174 raldifb 3216 unissb 3766 elintrab 3783 ssintrab 3794 dftr5 4029 repizf2lem 4085 reusv3 4381 tfi 4496 raliunxp 4680 fununi 5191 dff13 5669 dfsmo2 6184 tfr1onlemaccex 6245 tfrcllemaccex 6258 qliftfun 6511 prime 9150 raluz 9373 raluz2 9374 ralrp 9463 facwordi 10486 modfsummod 11227 isprm2 11798 isprm4 11800 metcnp 12681 limcdifap 12800 bdcriota 13081 |
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