![]() |
Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
|
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 347 exp4a 364 imdistan 441 pm5.3 467 pm4.87 547 nan 682 pm4.14dc 876 pm5.6dc 912 2sb6 1960 2sb6rf 1966 2exsb 1985 mor 2042 eu2 2044 moanim 2074 r2alf 2455 r3al 2480 r19.23t 2542 ceqsralt 2716 rspc2gv 2805 ralrab 2849 ralrab2 2853 euind 2875 reu2 2876 reu3 2878 rmo4 2881 rmo3f 2885 reuind 2893 rmo2ilem 3002 rmo3 3004 ralss 3168 rabss 3179 raldifb 3221 unissb 3774 elintrab 3791 ssintrab 3802 dftr5 4037 repizf2lem 4093 reusv3 4389 tfi 4504 raliunxp 4688 fununi 5199 dff13 5677 dfsmo2 6192 tfr1onlemaccex 6253 tfrcllemaccex 6266 qliftfun 6519 prime 9174 raluz 9400 raluz2 9401 ralrp 9492 facwordi 10518 modfsummod 11259 isprm2 11834 isprm4 11836 metcnp 12720 limcdifap 12839 bdcriota 13252 |
Copyright terms: Public domain | W3C validator |